LIST OF TABLES LIST OF FIGURES KEY TO SYMBOLS Introduction Background Research Objectives o o o o o o Materials Weave Areal Weight (g/m 2) Fiber Type Tow Size Fiber Density (g/cm 3) Fiber Diameter (microns) 4-Harness Satin 204 IM7 6K 1.78 5.2 Literature Review Liquid Composite Molding Reinforcement Compaction/Compressibility Reinforcement/Preform Permeability ° ° ° µ ° ° ° ° ° ° ° ° ° Time Inlet Pressure Random fiber mat Directional mat Inlet Outlet Mold Wall Gap Preform Compaction Method Laser Gage Compression Platen Base Plate Dial Gage Preform Connection to Load Cell Variation # Preform ID Material # of Layers Layup Sequence Tackifier Debulked 1 Warp Aligned Non -Tackified IM7-4HS 6 [0]6 No No 2 Laminate Non -Tackified IM7-4HS 6 [0,+45] 3 No No 3 Warp Aligned Tackified IM7-4HS 6 [0]6 Yes No 4 Debulked Laminate IM7-4HS 6 [0,+45] 3 Yes Yes 5 12 ply Laminate Non -Tackified IM7-4HS 12 [0,+45] 6 No No 6 12 ply Debulked Laminate IM7-4HS 12 [0,+45] 6 Yes Yes ° ° ° Results and Discussion 020406080100 120 140 160 01020304050607080Temperature ( °C) Time (min) Part Platen 00.10.20.30.40.50.6020406080100 120 Fiber Volume Fraction, V f Comapction Pressure (kPa) Non-tackified Laminate (12 ply) Loading Unloading Unloading Loading 00.10.20.30.40.50.6020406080100 120 Fiber Volume Fraction, V f Compaction Pressure (kPa) Debulked Laminate (6 ply) Loading Unloading Non-tackified Laminate (6 ply) Loading Unloading 00.10.20.30.40.50.6020406080100 120 Fiber Volume Fraction, Vf Compaction Pressure (kPa) Non-tackified Laminate (12 ply) Loading Unloading Debulked Laminate (12 ply) Loading Unloading 00.10.20.30.40.50.6020406080100 120 Fiber Volume Fraction, V f Compaction Pressure (kPa) Non-tackified Laminate (6 ply) Loading Unloading Non-tackified Laminate (12 ply) Loading Unloading 00.10.20.30.40.50.6020406080100 120 Fiber Volume Fraction, V f Compaction Pressure (kPa) Debulked Laminate (12 ply) Loading Unloading Debulked Laminate (6 ply) Loading Unloading 00.10.20.30.40.50.60.70.80100 200 300 400 500 600 Fiber Volume Fraction, V f Compaction Pressure (kPa) Warp Aligned Non-Tackified (6 ply) Loading Unloading Warp Aligned Tackified (6ply) Loading Unloading 00.10.20.30.40.50.60.70.80.90100 200 300 400 500 600 Fiber Volume Fraction, V f Compaction Pressure (kPa) Warp Aligned Non-Tackified WET (6 ply) Loading Unloading Warp Aligned Non-Tackified (6 ply) Loading Unloading 00.10.20.30.40.50.60.70.80100 200 300 400 500 600 Fiber Volume Fraction, V f Compaction Pressure (kPa) Warp Aligned Tackified WET (6 ply) Loading Unloading Warp Aligned Tackified (6 ply) Loading Unloading Conclusions 00.10.20.30.40.50.60.70.80.90100 200 300 400 500 600 Fiber Volume Fraction, V f Compaction Pressure (kPa) Warp Aligned Non-Tackified WET (6 ply) Loading Unloading Warp Aligned Tackified WET (6 ply) Loading Unloading Saturated Permeability Methods Variation # Preform ID Material # of Layers Layup Sequence Tackifier Debulked 1 Warp Aligned Non -Tackified IM7-4HS 6 [0]6 No No 2 Laminate Non -Tackified IM7-4HS 6 [0,+45] 3 No No 3 Warp Aligned Tackified IM7-4HS 6 [0]6 Yes No 4 Debulked Laminate IM7-4HS 6 [0,+45] 3 Yes Yes 5 12 ply Laminate Non -Tackified IM7-4HS 12 [0,+45] 6 No No 6 12 ply Debulked Laminate IM7-4HS 12 [0,+45] 6 Yes Yes ° ° ° ° ° ° Results and Discussion °) °) °) y = 4E -10x R² = 0.9963 y = 2E -10x R² = 0.9953 y = 1E -10x R² = 0.996 0.0E+00 2.0E-08 4.0E-08 6.0E-08 8.0E-08 1.0E-07 1.2E-07 0100 200 300 400 500 600 700 Q (m3/sec) P (kPa) Vf=50% Vf=55% Vf=60% 7.00E-12 7.00E-11 0.45 0.50.55 0.60.65 Saturated Permeability (m 2) Fiber Volume Fraction, V f Sxx (0 deg.) Syy (90 deg.) Sxx' (45 deg.) Power (Sxx (0 deg.)) Power (Syy (90 deg.)) Power (Sxx' (45 deg.)) ° ° ° ° 6.00E-12 6.00E-11 0.45 0.50.55 0.60.65 Saturated Permeability (m 2) Fiber Volume Fraction, V f Sxx (0 deg.) Syy (90 deg.) Sxx' (45 deg.) S11 S22 Power (S11) Power (S22) Preform Type Average Saturated Permeabi lity by Test Direction (m 2) Sxx [0°] Syy [90°] Sxx' [45°] S11 S22 Non -tackified Laminate (6 ply) 2.83E -11 2.27E -11 2.42E -11 2.96E -11 2.13E -11 Debulked Laminate (6 ply) 2.16E -11 2.43E -11 1.96E -11 2.89E -11 1.70E -11 Non -tackified Warp Aligned (6 ply) 1.64E -11 3.63E -11 2.88E -11 3.70E -11 1.57E -11 Tackified Warp Aligned (6 ply) 1.39E -11 1.63E -11 1.97E -11 1.98E -11 1.21E -11 1E-12 1.1E-11 2.1E-11 3.1E-11 4.1E-11 5.1E-11 Sxx [0°] Syy [90°] Sxx' [45°] S11 S22 Saturated Permeability (m 2) Test Direction Non-tackified Laminate (6 ply) Debulked Laminate (6 ply) Non-tackified Warp Aligned (6 ply) Tackified Warp Aligned (6 ply) Preform Type Saturated Permeability Coefficients of Variations (%) Sxx [0°] Syy [90°] Sxx' [45°] S11 S22 Non -tackified Laminate (6 ply) 8.09 13.85 14.49 8.26 15.80 Debulked Laminate (6 ply) 21.43 26.78 13.66 19.80 12.93 Non -tackified Warp Aligned (6 ply) 17.77 6.72 12.84 7.13 18.99 Tackified Warp Aligned (6 ply) 18.72 0.93 4.59 4.08 6.80 ° ° ° ° ° ° Debulked Preform Tackified Preform Compaction Compaction Tackifier Tows Melted and Cured Tackifier 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 2.60E-11 3.10E-11 3.60E-11 Sxx [0°] Syy [90°] Saturated Permeability (m 2) Test Direction Debulked Laminate (6 ply) Debulked Laminate (12 ply) 7.00E-12 7.00E-11 0.45 0.50.55 0.60.65 Saturated Permeability (m 2) Fiber Volume Fraction, V f Non-tackified Warp Aligned (6 ply) Non-tackified Laminate (6 ply) Debulked Laminate (6 ply) Debulked Laminate (12 ply) Tackified Warp Aligned (6 ply) Power (Non-tackified Warp Aligned (6 ply)) Power (Non-tackified Laminate (6 ply)) Power (Debulked Laminate (6 ply)) Power (Debulked Laminate (12 ply)) Power (Tackified Warp Aligned (6 ply)) 7.00E-12 7.00E-11 0.45 0.50.55 0.60.65 Saturated Permeability (m 2) Fiber Volume Fraction, V f Non-tackified Warp Aligned (6 ply) Non-tackified Laminate (6 ply) Debulked Laminate (6 ply) Debulked Laminate (12 ply) Tackified Warp Aligned (6 ply) Power (Non-tackified Warp Aligned (6 ply)) Power (Non-tackified Laminate (6 ply)) Power (Debulked Laminate (6 ply)) Power (Debulked Laminate (12 ply)) ) ° ° ° c IM7 -4HS Preform Type Sxx/Syy S11/S22 50% V f 55% V f 60% V f 50% V f 55% V f 60% V f 6 Ply Warp Aligned Non -tackified 0.41 0.45 0.50 2.52 2.35 2.27 6 Ply Warp Aligned Tackified 0.85 0.85 0.87 1.61 1.63 2.06 6 Ply Non -tackified Laminate 1.16 1.25 1.34 1.49 1.39 1.51 6 Ply Debulked Laminate 0.67 0.89 1.17 2.86 1.71 1.98 12 ply Debulked Laminate 0.97 0.87 0.79 - - - 1.00E-14 5.10E-13 1.01E-12 1.51E-12 2.01E-12 2.51E-12 3.01E-12 50% 55% 60% Saturaeted Permeability (m 2) Fiber Volume Fraction, V f Non-tackified Laminate (6 ply) Non-tackified Laminate (12 ply) Debulked Laminate (6 ply) Debulked Laminate (12 ply) Non-tackified Warp Aligned (6 ply) Tackified Warp Aligned (6 ply) Vf = 50% Preform Type Szz (m 2) StDev (m 2) CV (%) Non -tackified Laminate (6 ply) 1.70E -12 3.15E -13 18.53 Non -tackified Laminate (12 ply) 2.04E -12 3.52E -13 17.25 Debulked Laminate (6 ply) 9.51E -13 8.45E -14 8.88 Non -tackified Warp Aligned (6 ply) 1.18E -12 4.71E -14 3.99 Tackified Warp Aligned (6 ply) 8.05E -13 2.30E -14 2.86 Debulked Laminate (12 ply) 1.02E -12 8.76E -14 8.59 Vf = 55% Preform Type Szz (m 2) StDev (m 2) CV (%) Non -tackified Laminate (6 ply) 8.89E -13 1.56E -13 17.56 Non -tackified Laminate (12 ply) 7.95E -13 1.96E -13 24.64 Debulked Laminate (6 ply) 5.97E -13 4.80E -14 8.04 Non -tackified Warp Aligned (6 ply) 6.38E -13 2.84E -14 4.46 Tackified Warp Aligned (6 ply) 4.14E -13 2.82E -14 6.82 Debulked Laminate (12 ply) 7.95E -13 5.06E -13 9.89 Vf = 60% Preform Type Szz (m 2) StDev (m 2) CV (%) Non -tackified Laminate (6 ply) 3.91E -13 1.06E -13 22.66 Non -tackified Laminate (12 ply) 3.36E -13 1.05E -13 31.28 Debulked Laminate (6 ply) 3.91E -13 3.01E -14 7.70 Non -tackified Warp Aligned (6 ply) 3.30E -13 1.83E -14 5.54 Tackified Warp Aligned (6 ply) 1.98E -13 1.58E -14 7.96 Debulked Laminate (12 ply) 3.36E -13 2.67E -13 11.27 1.00E-14 2.10E-13 4.10E-13 6.10E-13 8.10E-13 1.01E-12 1.21E-12 55% Saturated Permeability (m 2) Fiber Volume Fraction, V f Non-tackified Laminate (6 ply) Non-tackified Laminate (12 ply) Debulked Laminate (6 ply) Debulked Laminate (12 ply) Non-tackified Warp Aligned (6 ply) Tackified Warp Aligned (6 ply) 1.00E-13 1.00E-12 1.00E-11 1.00E-10 0.45 0.50.55 0.60.65 Saturated Permeability (m 2) Fiber Volume Fraction, V f S11 S22 S33 Power (S11) Power (S22) Power (S33) Conclusions Fluid Effects Fluid SAE 40 Oil SC-15 Part A (Resin) SC-15 Part B (Hardener) SC-15 Mixed (A:B = 100:30) Viscosity at Ambient (Pa -s) 0.24 0.58 0.045 0.285 Density at Ambient (kg/m^3) 706 1129 961 1085 Contact Angle and Surface Tension Measurement s µ µ Test Fluid Glass Beaker Du Noüy Ring Sample Loops Balance System Wire Sample Hanger Fiber Sample Counter -weight Loop Test Fluid Fluid Container µ Surface Tensi on by Test Fluid (dyne/cm) Run # SAE 40 Motor Oil SC-15 Part A 1 29.18 32.36 2 29.12 32.41 3 29.14 32.46 Average 29.15 32.41 StDev 0.03 0.05 CV (%) 0.11 0.16 Average Data from 28 Fiber Samples Fiber Diameter (µm) 5.59 Diameter StDev (µm) 0.27 Diameter CV (%) 4.86 Fiber Perimeter (From Average) (µm) 17.55 µ Fluid SAE 40 Oil SC-15 Part A (Epoxy only) Contact Angle Type Advancing Receding Advancing Receding Sample Size 10 9 8 7 (degrees) 45.34 56.36 37.54 47.81 5.92 3.96 5.63 6.91 CV (%) 13.06 7.03 14.99 14.46 Fluid SAE 40 Oil SC-15 Part A (Epoxy only) Advancing Receding Hysteresis Ratio Advancing Receding Hysteresis Ratio Sample Size 10 9 9 8 7 7 Average W A (erg/cm 2) 49.53 45.26 0.92 58.00 54.04 0.92 StDev W A (erg/cm 2) 2.08 1.64 0.03 2.02 2.91 0.03 CV (%) 4.21 3.62 3.60 3.48 5.38 3.23 Current Study Results Results from Hammond et al. [43] Fluid SAE 40 Oil SC-15 Part A (Epoxy only) Corn Oil EPON 815 Surface Tension (dyne/cm) 29.1 32.4 26.5 37.2 (degrees) 45.3 37.5 36.1 28.5 Advancing W A (erg/cm 2) 49.5 58.0 48.0 69.9 -0.01 00.01 0.02 0.03 0.04 0.05 0.06 0.07 00.511.522.533.544.55Wetting Force (mg) Fiber Immersion Depth (mm) Transient Wetting Force Fiber above fluid Fiber advancing in fluid Fiber receding in fluid Fiber surface irregularities Fiber tip artifact ZDOI y = -0.0014x + 0.0379 y = 0.0011x + 0.0450 -0.01 00.01 0.02 0.03 0.04 0.05 0.06 0.07 00.511.522.533.544.55Wetting Force (mg) Fiber Immersion Depth (mm) Transient Wetting Force Advance Recede -0.01 00.01 0.02 0.03 0.04 0.05 0.06 0.07 00.511.522.533.544.55Wetting Force (mg) Fiber Immersion Depth (mm) Transient Wetting Force Fiber surface irregularity ZDOI Buoyancy Corrected Wetting Force Measurement Points -0.01 0.01 0.03 0.05 0.07 0.09 0.11 0.13 0.15 00.511.522.533.544.555.5Wetting Force (mg) Fiber Immersion Depth (mm) Transient Wetting Force Unsaturated Channel Flow Measurements with Differing Fluids Fixture Cavity Preform Fixture Top Half Visualization Window Fluid Inlet Fluid Outlet Inlet Pressure Transducer Securing Bolts Material Layup Vf Constant Inlet Pressures Set Points ( kPa ) # Runs per Inlet Pressure Set Point Flow Direction Non -tackified IM7 -4HS [0]8 54.6% 69, 138 , 276 3 Warp or S xx Tackified IM7 -4HS [0]8 54.6% 69, 138, 276 3 Warp or S xx 051015202512345Capillary Pressure Drop (kPa) Form Factor, F SAE 40 Oil SC-15 Part A -0.00004 -0.00002 00.00002 0.00004 0.00006 0.00008 0.0001 0.00012 -100 0100 200 300 400 m (m2/s) Pressure Difference (kPa) SAE 40 Oil SC-15 Part A Linear (SAE 40 Oil) Linear (SC-15 Part A) -0.00002 -0.00001 00.00001 0.00002 0.00003 0.00004 0.00005 0.00006 0.00007 0.00008 -100 -50 050100 150 200 250 300 m (m2/s) Pressure Difference (kPa) SAE 40 Oil SC-15 Part A Linear (SAE 40 Oil) Linear (SC-15 Part A) Preform Type Pc (kPa) by Test Fluid Type SAE 40 Oil SC-15 Part A Non -tackified 12.64 16.23 Tackified -7.12 -0.21 00.005 0.01 0.015 0.02 0.025 0.03 0.035 00.05 0.10.15 0.2Capillary Number, Ca Flow Front Location (m) 69 kPa Target Inlet Pressure 138 kPa Target Inlet Pressure 276 kPa Target Inlet Pressure 00.005 0.01 0.015 0.02 0.025 00.05 0.10.15 0.2Capillary Number, Ca Flow Front Location (m) 69 kPa Target Inlet Pressure 138 kPa Target Inlet Pressure 276 kPa Target Inlet Pressure Non -Tackified Tackified Fluid SAE 40 Oil SC-15 Part A SAE 40 Oil SC-15 Part A Pc (kPa) 12.64 16.23 -7.12 -0.21 92.89° 93.34° 73.50° 89.56° -75 -25 2575125 175 225 275 325 375 425 -200 0200 400 600 800 1000 Inlet Pressure (kPa) Time (s) Transient Inlet Pressure 0102030405060708090100 0.30.40.50.60.70.8Capillary Pressure (kPa) Fiber Volume Fraction, V f Experimental Data Verrey Ahn F=4 Ahn F=2 0306090120 150 180 00.0025 0.005 0.0075 0.01 0.0125 0.015 Dynamic Contact Angle (degrees) Capillary Number, Ca Hoffman-Voinov- Tanner Law -20 -15 -10 -505101520253000.002 0.004 0.006 0.008 0.01 Capillary Presure (kPa) Capillary Number, Ca Theoretical - Hoffman-Voinov-Tanner Law Experimental - Constant Flow Rate Injections Experimental - Constant Pressure Injections Method Hoffman -Voinov -Tanner Constant Pressure Injections Experiments Ahn's Theoretical Formulation, F=4 Ahn's Theoretical Formulation, F=2 Neglecting Capillary Effects Correction Value Type Dynamic Constant Constant Constant Constant Pc (kPa) for Non -tackified Preforms Function of Ca 12.64 -17.64 -8.82 0 Pc (kPa) for Tackified Preforms N/A -7.12 -17.64 -8.82 0 Target Injection Pressure (kPa) Run # Actual Injection Pressure (kPa) Average Ca Over Length ( -) Pc from Hoffman -Voinov -Tanner Fit (kPa) 69 1 67.2 0.00134 -5.0 2 66.9 0.00142 -4.6 3 68.0 0.00173 -2.6 138 1 141.1 0.00295 3.6 2 141.3 0.00406 7.9 3 141.3 0.00436 8.9 276 1 280.0 0.00869 18.6 2 284.9 0.00835 18.1 3 278.2 0.01196 22.3 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 2.60E-11 3.10E-11 69 kPa 138 kPa 276 kPa Unsaturated Permeability (m 2) Target Constant Inlet Pressure Neglecting Capillary Pressure Tanner-Voinov-Hoffman Correction Constant Injection Pressure Exprimental Correction Ahn's Theoretical Correction, F=4 Ahn's Theoretical Correction, F=2 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 69 kPa 138 kPa 276 kPa Unsaturated Permeability (m 2) Target Constant Inlet Pressure Neglecting Capillary Pressure Constant Injection Pressure Experimental Correction Ahn's Theoretical Correction, F=4 Ahn's Theoretical Correction, F=2 Method Hoffman -Voinov -Tanner Constant Pressure Injections Experiments Ahn's Theoretical Formulation, F=4 Ahn's Theoretical Formulation, F=2 Neglecting Capillary Effects Correction Value Type Dynamic Constant Constant Constant Constant Pc (kPa) for Non -tackified Preforms N/A 16.23 22.13 11.06 0 Pc (kPa) for Tackified Preforms N/A -0.21 22.13 11.06 0 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 2.60E-11 3.10E-11 69 kPa 138 kPa 276 kPa Unsaturated Permeability (m 2) Target Constant Inlet Pressure Neglecting Capillary Pressure Constant Injection Pressure Exprimental Correction Ahn's Theoretical Correction, F=4 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 69 kPa 138 kPa 276 kPa Unsaturated Permeability (m 2) Target Constant Inlet Pressure Neglecting Capillary Pressure Constant Injection Pressure Experimental Correction Ahn's Theoretical Correction, F=4 Ahn's Theoretical Correction, F=2 Sxx Permeability by Test Fluid and Target Inlet Pressure (m 2) Run # 69 kPa 138 kPa 276 kPa SAE 40 Oil SC-15 Part A SAE 40 Oil SC-15 Part A SAE 40 Oil SC-15 Part A Run 1 1.56E -11 1.31E -11 1.42E -11 1.39E -11 2.04E -11 1.39E -11 Run 2 1.66E -11 1.48E -11 2.00E -11 1.86E -11 1.93E -11 2.08E -11 Run 3 1.98E -11 1.43E -11 2.12E -11 1.70E -11 2.83E -11 1.79E -11 Avg. 1.73E -11 1.41E -11 1.85E -11 1.65E -11 2.27E -11 1.76E -11 StDev 2.22E -12 8.95E -13 3.77E -12 2.37E -12 4.92E -12 3.47E -12 CV (%) 12.8 6.4 20.4 14.3 21.7 19.8 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 2.60E-11 3.10E-11 69 kPa 138 kPa 276 kPa Unsaturated Permeability (m 2) Target Constant Injection Pressure NAPA SAE 40 Oil SC-15 Part A Sxx Permeability by Test Fluid and Target Inlet Pressure (m 2) Run # 69 kPa 138 kPa 276 kPa SAE 40 Oil SC-15 Part A SAE 40 Oil SC-15 Part A SAE 40 Oil SC-15 Part A Run 1 1.06E -11 8.62E -12 1.66E -11 1.02E -11 1.35E -11 9.25E -12 Run 2 1.27E -11 8.11E -12 1.49E -11 1.14E -11 1.43E -11 9.54E -12 Run 3 1.37E -11 8.15E -12 1.61E -11 1.03E -11 1.23E -11 9.45E -12 Avg 1.23E -11 8.29E -12 1.59E -11 1.06E -11 1.34E -11 9.41E -12 StDev 1.56E -12 2.87E -13 8.56E -13 6.86E -13 1.00E -12 1.48E -13 CV (%) 12.6 3.5 5.4 6.4 7.5 1.6 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 69 kPa 138 kPa 276 kPa Unsaturated Permeability (m 2) Target Constant Injection Pressure NAPA SAE 40 Oil SC-15 Part A y = 3E -14x + 2E -11 y = 2E -14x + 1E -11 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 2.60E-11 3.10E-11 3.60E-11 050100 150 200 250 300 350 Unsaturated Permeability (m 2) Injection Pressure (kPa) SAE 40 Oil SC-15 Part A Linear (SAE 40 Oil) y = 2E -15x + 1E -11 y = 4E -15x + 9E -12 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 2.60E-11 3.10E-11 3.60E-11 050100 150 200 250 300 350 Unsaturated Permeability (m 2) Injection Pressure (kPa) SAE 40 Oil SC-15 Part A Linear (SAE 40 Oil) y = 1E -08x + 1E -12 R² = 0.9985 y = 5E -09x - 7E-13 R² = 0.9981 y = 2E -09x - 1E-12 R² = 0.999 y = 1E -08x + 2E -12 R² = 0.9651 y = 5E -09x + 3E -12 R² = 0.9986 y = 3E -09x - 6E-13 R² = 0.9991 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 2.60E-11 3.10E-11 00.002 0.004 0.006 0.008 0.01 0.012 0.014 Unsaturated Permeability (m 2) Capillary Number, Ca SAE 40 Oil - 69 kPa Target Pressure 138 kPa Target Pressure 276 kPa Target Pressure SC-15 Part A - 69 kPa Target Pressure 138 kPa Target Pressure 276 kPa Target Pressure y = 6E -09x + 3E -12 R² = 0.8538 y = 6E -09x - 5E-12 R² = 0.953 y = 2E -09x - 1E-12 R² = 0.9984 y = 5E -09x + 4E -12 R² = 0.2183 y = 6E -09x - 3E-12 R² = 0.9938 y = 2E -09x + 2E -12 R² = 0.2117 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 2.60E-11 3.10E-11 00.002 0.004 0.006 0.008 0.01 Unsaturated Permeability (m 2) Capillary Number, Ca SAE 40 Oil - 69 kPa Target Pressure 138 kPa Target Pressure 276 kPa Target Pressure SC-15 Part A - 69 kPa Target Pressure 138 kPa Target Pressure 276 kPa Target Pressure 1.00E-12 6.00E-12 1.10E-11 1.60E-11 2.10E-11 2.60E-11 69 kPa 138 kPa 276 kPa Unsaturated Permeability (m 2) Target Constant Inlet Pressure Non-tackified - SAE 40 Oil Non-tackified - SC-15 Part A Tackified - SAE 40 Oil Tackified - SC-15 Part A 1E-12 6E-12 1.1E-11 1.6E-11 2.1E-11 2.6E-11 3.1E-11 69 kPa 138 kPa 276 kPa Unsaturated Permeability (m 2) Target Constant Inlet Pressure Saturated Permeability - SAE 40 Oil Unsaturated Permeability - SAE 40 Oil Unsaturated Permeability - SC-15 Part A 1E-12 6E-12 1.1E-11 1.6E-11 2.1E-11 000Unsaturated Permeability (m 2) Target Constant Inlet Pressure Saturated Permeability - SAE 40 Oil Unsaturated Permeability - SAE 40 Oil Unsaturated Permeability - SC-15 Part A Conclusions Fluid Velocity (v) v = 0 Critical Ca Critical Re Wicking Flow Forced Flow Non -Darcy Flow Pc = 0 Maximum Capillary Effect Inertial Effects Become Significant Non-Darcy Flow Background µ Methods Material Layup Orientation Vf Range Tested Test Fluid Non -Tackified IM7 -4HS [0]6 50%, 55%, 60%, 65% SAE 40 Oil Tackified IM7 -4HS [0]6 50%, 55%, 60%, 65% SAE 40 Oil Pressure Drop across Preform Flow Rate Inertial Effects Fixture Leak / Race Tracking Results and Discussion Vf Value (m-1) Forchheimer Permeability (m 2) SDarcy /SFor. 50% Avg. 3.61E+09 2.67E -11 1.00 StDev 1.70E+09 3.44E -12 0.07 CV (%) 47.13 12.88 7.35 55% Avg. 1.96E+10 1.98E -11 0.90 StDev 2.34E+10 4.52E -12 0.09 CV (%) 119.32 22.84 9.66 60% Avg. 7.76E+10 1.46E -11 0.78 StDev 6.23E+10 2.46E -12 0.13 CV (%) 80.34 16.84 17.16 Vf Value (m-1) Forchheimer Permeability (m 2) SDarcy /SFor. 50% Avg. 6.32E+09 2.59E -11 1.09 StDev 9.02E+09 4.98E -12 0.15 CV(%) 142.81 19.20 13.81 55% Avg. 2.70E+09 1.84E -11 0.99 StDev 2.42E+09 3.56E -12 0.03 CV(%) 89.48 19.31 3.04 60% Avg. 1.59E+10 1.02E -11 0.97 StDev 2.21E+10 1.89E -12 0.06 CV(%) 139.51 18.46 6.51 Vf = 50% Flow Rate Value Avg. (cc/min) StDev (cc/min) CV (%) Non -Tackified IM7 -4HS 12.19 9.17 75.21 Tackified IM7 -4HS 21.60 19.53 90.42 Vf = 55% Flow Rate Value Avg. (cc/min) StDev (cc/min) CV (%) Non -Tackified IM7 -4HS 6.22 6.90 110.98 Tackified IM7 -4HS 29.90 26.82 89.68 Vf = 60% Flow Rate Value Avg. (cc/min) StDev (cc/min) CV (%) Non -Tackified IM7 -4HS 0.97 0.60 61.78 Tackified IM7 -4HS 27.18 29.44 108.32 0.0E+00 2.0E-08 4.0E-08 6.0E-08 8.0E-08 1.0E-07 1.2E-07 1.4E-07 1.6E-07 1.8E-07 2.0E-07 0200 400 600 800 1000 Q (m3/s) P (kPa) 0.0E+00 2.0E-08 4.0E-08 6.0E-08 8.0E-08 1.0E-07 1.2E-07 1.4E-07 1.6E-07 1.8E-07 2.0E-07 0500 1000 1500 2000 Q (m 3/s) P (kPa) 50% Vf 55% Vf 60% Vf 65% Vf 0.0E+00 5.0E-08 1.0E-07 1.5E-07 2.0E-07 2.5E-07 3.0E-07 0500 1000 1500 2000 2500 Q (m 3/s) P (kPa) 50% Vf 55% Vf 60% Vf 65% Vf 1.3400 1.3900 1.4400 1.4900 1.5400 1.5900 0500 1000 1500 LVDT Readout of Cavity Depth (mm) Inlet Pressure (kPa) LVDT Inlet LVDT Outlet Compaction Pressure LVDT Outlet Inlet Preform High Pressure Inlet Area y = 2E -10x R² = 0.9982 0.0E+00 5.0E-08 1.0E-07 1.5E-07 2.0E-07 2.5E-07 3.0E-07 0200 400 600 800 1000 1200 1400 Q (m 3/s) P (kPa) Vf = 50% Vf = 50% - Measured Before Fixture Displacement (a) (b) 1.08 1.11.12 1.14 1.16 1.18 1.21.22 1.24 1.26 1.28 0500 1000 1500 2000 2500 LVDT Readout of Cavity Depth (mm) Inlet Pressure (kPa) LVDT Inlet Critical Inlet Pressure (kPa) Vf IM7-4HS Preform Type Non -Tackified Tackified 50% 717 689 55% 818 717 60% 1007 979 65% 1351 1400 Conclusions Radial Flow Measurement and Simulation Visualization Method Securing bolts Top frame Clear top plate Spacing frame Fluid inlet Preform area Fluid outlet (1 of 2) Resin runner Material Layup Vf (%) # Runs Target Inlet Pressure (kPa) Non -tackified IM7 -4HS [0]14 50 4 138 Tackified IM7 -4HS [0]14 50 2 138 Results and Discussion ° ° ° ° 0.00 30.00 60.00 90.00 120.00 1E-12 1.1E-11 2.1E-11 3.1E-11 4.1E-11 5.1E-11 6.1E-11 7.1E-11 8.1E-11 0100 200 300 400 500 600 700 (°) Unsaturated Permeability (m 2) Time (s) S11 S22 Run S11 (m2) S22 (m2) (°) Non -tackified Tackified Non -tackified Tackified Non -tackified Tackified 1 6.51E -11 2.56E -11 1.83E -11 2.05E -11 91.23 -7.52 2 2.71E -11 7.01E -12 1.48E -11 6.55E -12 92.68 113.68 3 2.05E -11 - 1.22E -11 - 98.84 - 4 2.55E -11 - 1.06E -11 - 90.07 - Avg. 3.46E -11 1.63E -11 1.40E -11 1.35E -11 93.21 53.08 StDev 2.06E -11 - 3.38E -12 - 3.91 - CV (%) 59.48 - 24.16 - 4.19 - Run Sxx Syy Sxx' Non -tackified Tackified Non -tackified Tackified Non -tackified Tackified 1 1.83E -11 2.55E -11 6.50E -11 2.06E -11 2.93E -11 2.34E -11 2 1.48E -11 6.60E -12 2.71E -11 6.95E -12 1.97E -11 7.01E -12 3 1.23E -11 - 2.02E -11 - 1.66E -11 - 4 1.06E -11 - 2.55E -11 - 1.50E -11 - Avg 1.40E -11 1.60E -11 3.44E -11 1.38E -11 2.01E -11 1.52E -11 StDev 3.36E -12 - 2.06E -11 - 6.41E -12 - CV (%) 23.97 - 59.82 - 31.87 - ° Run # (°) Sxx/Syy Non -tackified Tackified Non -tackified Tackified 1 91.23 -7.52 0.28 1.24 2 92.68 113.68 0.55 0.95 3 98.84 - 0.61 - 4 90.07 - 0.42 - Average 93.21 53.08 0.46 1.09 StDev 3.91 - 0.15 - CV (%) 4.19 - 31.51 - ° 1.00E-12 1.10E-11 2.10E-11 3.10E-11 4.10E-11 5.10E-11 6.10E-11 7.10E-11 Sxx [0°] Sxx' [45°] Syy [90°] Permeability (m 2) Test Direction Non-tackified (Radial Unsaturated) Tackified (Radial Unsaturated) Non-tackified (Saturated) Tackified (Saturated) Conclusions Summary and Conclusions Summary and Conclusions Future Work APPENDICES Appendix A: Additional Saturated Permeability Measurement Data 0 deg . (Sxx in m 2) 90 deg. (Syy in m 2) Run \Vf 50% 55% 60% 50% 55% 60% 1 4.05E -11 2.48E -11 1.58E -11 4.73E -11 2.30E -11 1.19E -11 2 5.17E -11 2.86E -11 1.66E -11 4.16E -11 1.94E -11 9.62E -12 3 5.73E -11 3.00E -11 1.66E -11 3.86E -11 2.23E -11 1.36E -11 4 5.56E -11 2.76E -11 1.46E -11 3.81E -11 2.09E -11 1.21E -11 5 4.81E -11 3.06E -11 2.02E -11 5.28E -11 2.77E -11 1.53E -11 Avg 5.06E -11 2.83E -11 1.68E -11 4.37E -11 2.27E -11 1.25E -11 StDev 6.70E -12 2.29E -12 2.09E -12 6.28E -12 3.14E -12 2.11E -12 CV (%) 13.22 8.09 12.47 14.37 13.85 16.90 45 deg. (S xx in m 2) Run \Vf 50% 55% 60% 1 3.99E -11 2.25E -11 1.33E -11 2 3.74E -11 1.94E -11 1.07E -11 3 4.58E -11 2.43E -11 1.37E -11 4 5.91E -11 2.84E -11 1.45E -11 5 5.59E -11 2.66E -11 1.35E -11 Avg 4.76E -11 2.42E -11 1.31E -11 StDev 9.59E -12 3.51E -12 1.44E -12 CV (%) 20.13 14.49 10.94 S11 (1st Principal Permeability in m 2) S22 (2nd Principal Permeability in m 2) Run \Vf 50% 55% 60% 50% 55% 60% 1 4.92E -11 2.56E -11 1.59E -11 3.87E -11 2.22E -11 1.18E -11 2 5.72E -11 3.05E -11 1.74E -11 3.61E -11 1.75E -11 8.87E -12 3 5.75E -11 3.04E -11 1.72E -11 3.84E -11 2.19E -11 1.30E -11 4 6.19E -11 2.96E -11 1.50E -11 3.18E -11 1.89E -11 1.17E -11 5 5.64E -11 3.21E -11 2.27E -11 4.45E -11 2.62E -11 1.28E -11 Avg 5.64E -11 2.96E -11 1.76E -11 3.79E -11 2.13E -11 1.16E -11 StDev 4.60E -12 2.45E -12 2.97E -12 4.61E -12 3.37E -12 1.67E -12 CV (%) 8.16 8.26 16.86 12.17 15.80 14.33 Through -thickness (S zz in m 2) Vf Run 1 Run 2 Run 3 Run 4 Run5 Avg. StDev CV (%) 50% 1.43E -12 1.49E -12 1.51E -12 2.08E -12 2.01E -12 1.70E -12 3.15E -13 18.53 55% 7.71E -13 8.40E -13 7.31E -13 1.01E -12 1.09E -12 8.89E -13 1.56E -13 17.56 60% 3.76E -13 4.40E -13 3.78E -13 5.26E -13 6.24E -13 4.69E -13 1.06E -13 22.66 0 deg. (S xx in m 2) 90 deg. (S yy in m 2) Run \Vf 50% 55% 60% 50% 55% 60% 1 3.39E -11 2.24E -11 1.54E -11 9.42E -11 2.67E -11 8.45E -12 2 6.15E -11 2.45E -11 1.06E -11 5.55E -11 2.24E -11 9.76E -12 3 7.39E -11 2.72E -11 1.09E -11 6.07E -11 1.69E -11 5.25E -12 4 3.51E -11 1.62E -11 7.99E -12 9.46E -11 3.42E -11 1.35E -11 5 3.20E -11 1.76E -11 1.02E -11 4.95E -11 2.15E -11 1.00E -11 Avg. 4.73E -11 2.16E -11 1.10E -11 7.09E -11 2.43E -11 9.39E -12 StDev 1.92E -11 4.63E -12 2.70E -12 2.18E -11 6.52E -12 2.98E -12 CV (%) 40.61 21.43 24.53 30.75 26.78 31.69 45 deg. (S xx in m 2) Run \Vf 50% 55% 60% 1 3.13E -11 1.51E -11 7.74E -12 2 4.18E -11 2.05E -11 1.07E -11 3 3.86E -11 2.21E -11 1.33E -11 4 3.69E -11 2.08E -11 1.23E -11 5 3.45E -11 1.96E -11 1.17E -11 Avg. 3.66E -11 1.96E -11 1.11E -11 StDev 3.97E -12 2.68E -12 2.13E -12 CV (%) 10.83 13.66 19.07 S11 (1st Principal Permeability in m 2) S22 (2nd Principal Permeability in m 2) Run \Vf 50% 55% 60% 50% 55% 60% 1 1.09E -10 3.42E -11 1.74E -11 1.95E -11 1.49E -11 6.49E -12 2 7.55E -11 2.66E -11 1.08E -11 4.15E -11 2.03E -11 9.51E -12 3 9.67E -11 2.72E -11 1.40E -11 3.79E -11 1.69E -11 2.14E -12 4 1.06E -10 3.52E -11 1.39E -11 2.40E -11 1.52E -11 7.58E -12 5 5.15E -11 2.15E -11 1.17E -11 3.00E -11 1.76E -11 8.50E -12 Avg. 8.76E -11 2.89E -11 1.36E -11 3.06E -11 1.70E -11 6.84E -12 StDev 2.40E -11 5.73E -12 2.53E -12 9.19E -12 2.19E -12 2.86E -12 CV (%) 27.38 19.80 18.65 30.05 12.93 41.78 Through -thickness (S zz in m 2) Vf Run 1 Run 2 Run 3 Run 4 Run5 Avg. StDev CV (%) 50% 9.44E -13 8.56E -13 9.20E -13 9.47E -13 1.09E -12 9.51E -13 8.45E -14 8.88 55% 5.76E -13 5.44E -13 5.92E -13 6.01E -13 6.74E -13 5.97E -13 4.80E -14 8.04 60% 3.67E -13 3.60E -13 3.95E -13 3.97E -13 4.36E -13 3.91E -13 3.01E -14 7.70 0 deg. (S xx in m 2) 90 deg. (S yy in m 2) Run \Vf 50% 55% 60% 50% 55% 60% 1 2.32E -11 1.32E -11 7.89E -12 6.28E -11 3.36E -11 1.89E -11 2 2.57E -11 1.89E -11 1.43E -11 6.11E -11 3.82E -11 2.49E -11 3 3.10E -11 1.71E -11 9.95E -12 7.28E -11 3.71E -11 2.01E -11 Avg. 2.67E -11 1.64E -11 1.07E -11 6.56E -11 3.63E -11 2.13E -11 StDev 3.98E -12 2.92E -12 3.26E -12 6.31E -12 2.44E -12 3.15E -12 CV (%) 14.92 17.77 30.48 9.62 6.72 14.81 45 deg. (S xx in m 2) Run \Vf 50% 55% 60% 1 4.63E -11 2.61E -11 1.55E -11 2 4.54E -11 2.72E -11 1.70E -11 3 5.84E -11 3.30E -11 1.96E -11 Avg. 5.00E -11 2.88E -11 1.74E -11 StDev 7.27E -12 3.69E -12 2.06E -12 CV (%) 14.53 12.84 11.86 S11 (1st Principal Permeability in m 2) S22 (2nd Principal Permeability in m 2) Run \Vf 50% 55% 60% 50% 55% 60% 1 6.31E -11 3.40E -11 1.93E -11 2.29E -11 1.28E -11 7.50E -12 2 6.12E -11 3.83E -11 2.55E -11 2.56E -11 1.88E -11 1.37E -11 3 7.38E -11 3.87E -11 2.19E -11 3.00E -11 1.55E -11 8.19E -12 4 5 Avg. 6.60E -11 3.70E -11 2.22E -11 2.62E -11 1.57E -11 9.80E -12 StDev 6.79E -12 2.64E -12 3.12E -12 3.58E -12 2.98E -12 3.40E -12 CV (%) 10.28 7.13 14.05 13.67 18.99 34.66 Through -thickness (S zz in m 2) Vf Run 1 Run 2 Avg. StDev CV (%) 50% 1.21E -12 1.14E -12 1.18E -12 4.71E -14 3.99 55% 6.58E -13 6.18E -13 6.38E -13 2.84E -14 4.46 60% 3.43E -13 3.17E -13 3.30E -13 1.83E -14 5.54 0 deg. (S xx in m 2) 90 deg. (S yy in m 2) Run \Vf 50% 55% 60% 50% 55% 60% 1 1.99E -11 1.04E -11 5.73E -12 2.934E -11 1.614E -11 8.915E -12 2 2.51E -11 1.34E -11 7.59E -12 1.624E -11 3 3.14E -11 1.84E -11 1.13E -11 1.64E -11 4 2.56E -11 1.35E -11 7.49E -12 5 2.55E -11 1.39E -11 8.04E -12 6 1.64E -11 7 2.22E -11 1.12E -11 6.25E -12 8 1.36E -11 Avg. 2.50E -11 1.39E -11 7.74E -12 2.93E -11 1.63E -11 8.92E -12 StDev 3.88E -12 2.60E -12 1.97E -12 - 1.51E -13 - CV (%) 15.54 18.72 25.44 - 0.93 - 45 deg. (S xx in m 2) Run \Vf 50% 55% 60% 1 3.354E -11 1.871E -11 1.138E -11 2 2.044E -11 3 2E-11 Avg. 3.35E -11 1.97E -11 1.14E -11 StDev - 9.05E -13 - CV (%) - 4.59 - S11 (1st Principal Permeability in m 2) S22 (2nd Principal Permeability in m 2) Run \Vf 50% 55% 60% 50% 55% 60% 1 3.383E -11 1.887E -11 1.142E -11 2.101E -11 1.120E -11 5.535E -12 2 2.045E -11 1.224E -11 3 2E-11 1.28E -11 Avg. 3.38E -11 1.98E -11 1.14E -11 2.10E -11 1.21E -11 5.54E -12 StDev - 8.06E -13 - - 8.22E -13 - CV (%) - 4.08 - - 6.80 - Through -thickness (S zz in m 2) Vf Run 1 Run 2 Avg. StDev CV (%) 50% 8.21E -13 7.89E -13 1.18E -12 4.71E -14 3.99 55% 4.34E -13 3.94E -13 6.38E -13 2.84E -14 4.46 60% 2.09E -13 1.87E -13 3.30E -13 1.83E -14 5.54 0 deg. (S xx in m 2) 90 deg. (S yy in m 2) Run \Vf 50% 55% 60% 50% 55% 60% 1 3.94E -11 1.91E -11 9.82E -12 4.43E -11 2.25E -11 1.21E -11 2 4.07E -11 1.85E -11 9.03E -12 3.03E -11 1.63E -11 9.26E -12 3 2.64E -11 1.17E -11 5.53E -12 3.05E -11 1.64E -11 9.29E -12 4 2.51E -11 1.29E -11 7.06E -12 3.05E -11 1.63E -11 9.15E -12 Avg. 3.29E -11 1.55E -11 7.86E -12 3.39E -11 1.79E -11 9.95E -12 StDev 8.27E -12 3.79E -12 1.94E -12 6.94E -12 3.09E -12 1.44E -12 CV (%) 25.15 24.36 24.65 20.46 17.29 14.47 Through -thickness (S zz in m 2) Vf Run 1 Run 2 Run 3 Avg. StDev CV (%) 50% 9.89E -13 9.53E -13 1.12E -12 1.02E -12 8.76E -14 8.59 55% 4.79E -13 4.75E -13 5.63E -13 5.06E -13 5.00E -14 9.89 60% 2.47E -13 2.52E -13 3.01E -13 2.67E -13 3.00E -14 11.27 0 deg. (S xx in m 2) Run \Vf 50% 55% 60% 1 4.70E -11 2.95E -11 1.92E -11 Avg. - - - StDev - - - CV (%) - - - Through -thickness (S zz in m 2) Vf Run 1 Run 2 Avg. StDev CV (%) 50% 1.79E -12 2.29E -12 2.04E -12 3.52E -13 17.25 55% 6.56E -13 9.33E -13 7.95E -13 1.96E -13 24.64 60% 2.62E -13 4.11E -13 3.36E -13 1.05E -13 31.28 IM7 -4HS Preform Type Sxx Syy Sxx' a b a b a b 6 Ply Warp Aligned Non -tackified 8.28E -13 -5.00 9.11E -13 -6.17 9.01E -13 -5.79 6 Ply Warp Aligned Tackified 2.94E -13 -6.42 3.21E -13 -6.53 5.59E -13 -5.29 6 Ply Non -tackified Laminate 7.55E -13 -6.07 3.75E -13 -6.86 3.56E -13 -7.06 6 Ply Debulked Laminate 1.84E -13 -7.99 3.24E -14 -1.11 3.98E -13 -6.52 12 ply Debulked Laminate 1.43E -13 -7.85 3.20E -13 -6.73 - - IM7 -4HS Preform Type S11 S22 a b a b 6 Ply Warp Aligned Non -tackified 1.05E -12 -5.98 6.25E -13 -5.39 6 Ply Warp Aligned Tackified 5.51E -13 -5.95 1.40E -13 -7.29 6 Ply Non -tackified Laminate 6.65E -13 -6.39 4.36E -13 -6.46 6 Ply Debulked Laminate 6.89E -14 -1.03 1.12E -13 -8.18 12 ply Debulked Laminate - - - - Appendix B: Additional Fluid Effects Measurement Data Fluid: SAE 40 Motor Oil Run # Maximum Wt. (mg) (mg/mm) (mg/mm) (dyne/cm) 1 421.71 3.51 0.847 2.98 29.18 2 420.81 3.51 0.847 2.97 29.12 3 421.19 3.51 0.847 2.97 29.14 Average 421.24 3.51 0.847 2.97 29.15 StDev 0.45 0.00 0.000 0.00 0.03 CV (%) 0.11 0.11 0.001 0.11 0.11 Fluid: SC -15 Part A (Epoxy only) Run # Maximum Wt. (mg) (mg/mm) (mg/mm) (dyne/cm) 1 469.03 3.91 0.844 3.30 32.36 2 469.73 3.91 0.844 3.30 32.41 3 470.52 3.92 0.844 3.31 32.46 Average 469.76 3.91 0.844 3.30 32.41 StDev 0.75 0.01 0.000 0.01 0.05 CV (%) 0.16 0.16 0.001 0.16 0.16 -200 -100 0100 200 300 400 500 0246810Wetting Force (mg) Immersion Depth (mm) Wetting Force -100 0100 200 300 400 500 0246810Wetting Force (mg) Immersion Depth (mm) Wetting Force IM7 Fiber Diameter Measurements (µm) Sample # Point 1 Point 2 Point 3 Sample Avg. Sample StDev Among 3 Pts. CV (%) Among 3 Pts. Perimeter (from Avg.) 1 5.22 5.27 5.38 5.29 0.08 1.55 16.62 2 5.22 5.25 5.2 5.22 0.03 0.48 16.41 3 8.35 7.98 7.82 8.05 0.27 3.38 25.29 4 5.63 5.73 5.71 5.69 0.05 0.93 17.88 5 6.21 5.52 5.6 5.78 0.38 6.53 18.15 6 5.44 5.38 5.65 5.49 0.14 2.58 17.25 7 5.35 5.44 5.29 5.36 0.08 1.41 16.84 8 5.68 5.61 6.8 6.03 0.67 11.07 18.94 9 5.64 5.58 5.58 5.60 0.03 0.62 17.59 10 5.51 5.75 5.69 5.65 0.12 2.21 17.75 11 5.59 5.47 5.38 5.48 0.11 1.92 17.22 12 5.69 6.63 6.71 6.34 0.57 8.94 19.93 13 5.8 5.7 5.94 5.81 0.12 2.07 18.26 14 5.51 5.44 5.41 5.45 0.05 0.94 17.13 15 5.59 5.5 5.41 5.50 0.09 1.64 17.28 16 5.22 5.15 5.19 5.19 0.04 0.68 16.29 17 5.38 5.49 5.39 5.42 0.06 1.12 17.03 18 5.54 5.59 5.77 5.63 0.12 2.15 17.70 19 5.55 5.58 5.58 5.57 0.02 0.31 17.50 20 5.5 5.65 5.6 5.58 0.08 1.37 17.54 21 5.35 5.37 5.4 5.37 0.03 0.47 16.88 22 5.51 6.14 5.34 5.66 0.42 7.44 17.79 23 5.92 5.89 5.92 5.91 0.02 0.29 18.57 24 5.4 5.35 5.45 5.40 0.05 0.93 16.96 25 5.38 5.32 5.3 5.33 0.04 0.78 16.76 26 5.65 5.64 5.67 5.65 0.02 0.27 17.76 27 6.06 5.94 6.07 6.02 0.07 1.20 18.92 28 5.72 5.66 5.83 5.74 0.09 1.50 18.02 29 5.19 5.24 5.23 5.22 0.03 0.51 16.40 Average 5.65 5.66 5.70 5.67 0.13 2.25 17.82 Average without #3 5.55 5.58 5.62 5.59 0.13 2.21 17.55 Sample ID Test Fluid Advancing Data Receding Data Fiber -1 SAE 40 Oil Used Used Fiber -2 SAE 40 Oil Used Used Fiber -3 SAE 40 Oil Unused Unused Fiber -4 SAE 40 Oil Used Used Fiber -5 SAE 40 Oil Used Used Fiber -6 SAE 40 Oil Used Used Fiber -7 SAE 40 Oil Used Used Fiber -8 SAE 40 Oil Unused Unused Fiber -9 SAE 40 Oil Unused Unused Fiber -10 SAE 40 Oil Used Unused Fiber -11 SAE 40 Oil Used Used Fiber -12 SAE 40 Oil Used Used Fiber -13 SAE 40 Oil Used Used Fiber -14 SC-15 Unused Unused Fiber -15 SC-15 Unused Unused Fiber -16 SC-15 Unused Unused Fiber -17 SC-15 Unused Unused Fiber -18 SC-15 Unused Unused Fiber -19 SC-15 Unused Unused Fiber -20 SC-15 Unused Unused Fiber -21 SC-15 Unused Unused Fiber -22 SC-15 Part A only Used Used Fiber -23 SC-15 Part A only Used Used Fiber -24 SC-15 Part A only Used Used Fiber -25 SC-15 Part A only Used Used Fiber -26 SC-15 Part A only Used Used Fiber -27 SC-15 Part A only Used Used Fiber -28 SC-15 Part A only Used Used Fiber -29 SC-15 Part A only Used Unused Sample ID Avg. Adv. Wt. (mg) Avg. Recd. Wt. (mg) Diameter Perimeter (cm) Advance Advance Recede Recede Fiber -22 0.036 0.051 5.663 1.779E -03 0.823 34.638 0.645 49.827 Fiber -23 0.032 0.040 5.910 1.857E -03 0.866 29.976 0.798 37.019 Fiber -24 0.035 0.044 5.400 1.696E -03 0.812 35.666 0.711 44.713 Fiber -25 0.036 0.047 5.333 1.676E -03 0.800 36.833 0.664 48.385 Fiber -26 0.036 0.045 5.653 1.776E -03 0.818 35.129 0.716 44.296 Fiber -27 0.040 0.056 6.023 1.892E -03 0.806 36.323 0.628 51.069 Fiber -28 0.046 0.062 5.737 1.802E -03 0.718 44.136 0.510 59.353 Fiber -29 0.045 NA 5.220 1.640E -03 0.674 47.595 NA NA Avg. 0.038 0.049 5.618 1.765E -03 0.790 37.537 0.667 47.809 StDev 0.005 0.008 0.281 8.837E -05 0.062 5.626 0.090 6.912 CV (%) 13.101 15.409 5.008 5.008E+00 7.882 14.987 13.437 14.458 SAE 40 Motor Oil Fiber ID Work of Adhesion (erg/cm 2) Hysteresis Ratio Advancing Receding Fiber -1 46.12 45.62 0.99 Fiber -2 49.85 45.40 0.91 Fiber -4 47.30 44.60 0.94 Fiber -5 49.13 43.73 0.89 Fiber -6 49.78 44.02 0.88 Fiber -7 48.58 43.29 0.89 Fiber -10 50.92 NA NA Fiber -11 48.90 45.49 0.93 Fiber -12 53.53 48.65 0.91 Fiber -13 51.24 46.55 0.91 Avg. 49.53 45.26 0.92 StDev 1.98 1.55 0.03 CV(%) 3.99 3.42 3.39 SC-15 Epoxy (Part A only) Fiber ID Work of Adhesion (erg/cm 2) Hysteresis Ratio Advancing Receding Fiber -22 59.07 53.32 0.90 Fiber -23 60.48 58.29 0.96 Fiber -24 58.74 55.44 0.94 Fiber -25 58.35 53.93 0.92 Fiber -26 58.92 55.61 0.94 Fiber -27 58.52 52.77 0.90 Fiber -28 55.67 48.93 0.88 Fiber -29 54.27 NA NA Avg. 58.00 54.04 0.92 StDev 1.89 2.69 0.03 CV(%) 3.25 4.98 2.99 Appendix C: MATLAB Scripts %Principal Permeability Calculator %Stephen Sommerlot 3/29/13 %CVRC %Code takes input from in-plane permeability testing data to find principal %permeabilities S11 and S22 and direction. Uses Mohr type transformation %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ %clears the workspace clear all %prompts user for permeability data input Sxx = input('Enter Sxx permeability value: '); Syy = input('Enter Syy permeability value: '); Sxx_prime = input('Enter Sxx_prime permeability value (45 deg): '); %computes off-axis permeability tensor component Sxy = Sxx_prime - (.5*Sxx) - (.5*Syy) %disaplys 2-D permeability tensor S_bar = [Sxx, Sxy; Sxy, Syy] %rotates S_bar to get S'_bar deg = pi/4; % 45 deg %deg = 0.523598776; % for 30 deg. a_bar_T = [cos(deg), sin(deg); -sin(deg), cos(deg)]; a_bar = [cos(deg), -sin(deg); sin(deg), cos(deg)]; S_prime_bar = a_bar_T * S_bar * a_bar; %finds principal permeabilities prinicpal_permeabilities = eig(S_prime_bar) S11 = max(prinicpal_permeabilities) S22 = min(prinicpal_permeabilities) %finds principal direction vector [V,D] = eig(S_prime_bar) %calculates angle of rotation (degrees), this is a very sensitive calculation to %experimental scatter beta_from_S_bar = (atan(2*S_bar(1,2)/(S_bar(1,1)-S_bar(2,2)))*180/pi)/2 % Stephen Sommerlot % CVRC % 3/5/14 % Script for ellipse detection in radial -visual fabric flow fronts % Uses ellipse calculations for unsaturated permeability determination % based on paper: radial flow permeability measurement. Part A and B by % Weitzenboeck % Note: constant pressure injection formulation % Prompt to get test data from user material = input('Enter Material Name: ', 's'); %'Non-Tackified IM7-4HS' OR Tackified IM7-4HS ply_num = 14; %input('Enter Ply Number: '); Vf_in = 50; % input('Enter Material Vf(%): '); Vf = Vf_in/100; porosity = 1- Vf; inlet_diameter = 3/8; % = input('Enter Punch Diameter (in.) Used for Inlet (can be a fraction): '); inlet_rad_m = (inlet_diameter*.0254)/2; x0 = inlet_rad_m; y0 = inlet_rad_m; t0 = 0; %27; % = input('Enter Initial Starting Time(s) Seen on Stopwatch for Flow Propagation: '); % 27s for SS2 % t_cutoff = input('Enter Cutoff Time of Time for Pressure Data: '); % 1200s for SS2 % Read test pressures from file, get average and StDev of inlet pressure cd('C:\Users\sommerl4\Documents\MATLAB\Edge Detect\coderdemo_edge_detection\Radial_Perm_Data') psig_in_file = load('Pressure_Inlet_0-6PSIG_tack2.txt'); psig_in_full = psig_in_file(:,2); time_in_full = psig_in_file(:,1); % Uncomment for manual truncation % time_diff = abs(time_in_full - t0); % [idx idx] = min(time_diff); % closest_time_to_t0 = time_in_full(idx); % time_diff2 =abs(time_in_full - t_cutoff); % [idx2 idx2] = min(time_diff2); % time_in = time_in_full(idx:idx2); % psi_in = psig_in_full(idx:idx2); avg_psi_in = mean(psig_in_full); Pressure_StDev_psi = std(psig_in_full); kpa_in = 6.89475729*psig_in_full; avg_kpa_in = mean(kpa_in); avg_pa_in = avg_kpa_in*1000; Pressure_StDev = std(kpa_in); pressure_CV = Pressure_StDev*100/avg_kpa_in; cd('C:\Users\sommerl4\Documents\MATLAB\Edge Detect\coderdemo_edge_detection \Radial_Perm_Data') % load image image = imread('IM7_tack_run2_3-7- 14_10min.png'); imshow(image) % gives user points to outline ellipse (10 in each quadrant) [x,y] = ginput(40); imshow(image) hold on plot(x,y, '+') h = gca; % get current axis handle % call ellipse finding function % outputs structure of ellipse props ellipse_t = fit_ellipse(x,y,h) % break structure into numerics using ellipse function defs ellipse_cell = struct2cell(ellipse_t); a = cell2mat(ellipse_cell(1)); % sub axis (radius) of the X axis of the non-tilt ellipse b = cell2mat(ellipse_cell(2)) ; % sub axis (radius) of the Y axis of the non-tilt ellipse phi = cell2mat(ellipse_cell(3)); % orientation in radians of the ellipse (tilt) X0 = cell2mat(ellipse_cell(4)); % center at the X axis of the non-tilt ellipse Y0 = cell2mat(ellipse_cell(5)); % center at the Y axis of the non-tilt ellipse X0_in = cell2mat(ellipse_cell(6)); % center at the X axis of the tilted ellipse Y0_in = cell2mat(ellipse_cell(7)); % center at the Y axis of the tilted ellipse long_axis = cell2mat(ellipse_cell(8)); % size of the long axis of the ellipse short_axis = cell2mat(ellipse_cell(9)); % size of the short axis of the ellipse % beta angle (just phi converted to degrees) beta = phi*(180/pi); %for 45 deg. radius based on non-tilted ellipse (radius should be same just %not rotated) deg45 = pi/4; x45 = a*cos(deg45); y45 = b*sin(deg45); r45 = sqrt(x45^2 + y45^2); % get reference measurement imtool(image) distance = 9.1160e+01; %input('Enter Reference Distance Pixel Length: '); uncomment this to user define distance refdist = distance; t_min_current = input('Enter Current Stopwatch Minutes on Image: '); t_sec_current = input('Enter Current Stopwatch Seconds on Image: '); t = ((t_min_current)*60 + t_sec_current) - t0; n = .0254; xf = ((a/refdist) * n); %m, radius of front in 1 direction yf = ((b/refdist) * n); %m, radius of front in 3 direction rf = ((r45/refdist) * n); %m radius of front in 2 direction % Calculate Ns,Fs,A,D,phi2, C according to Weitzenboeck N1 = (xf^2*(2*log(xf/x0) -1) + x0^2); N2 = (rf^2*(2*log(rf/x0) -1) + x0^2); N3 = (yf^2*(2*log(yf/y0) -1) + y0^2); F1 = N1/t; F2 = N2/t; F3 = N3/t; A = (F1 + F3)/2; D = (F1 - F3)/2; u=.24; %pa.s C = ((u*porosity)/(4*avg_pa_in)); phi2 = .5*atan( (A/D) - ((A^2 - D^2)/(F2*D)) ); phi2_deg = phi2*180/pi % find K1 and K1 unsaturated permeabilities at time K1 = F1*((A-D)/(A - (D/cos(2*phi2))))*C K2 = F3*((A+D)/(A + (D/cos(2*phi2))))*C K1fromBeta = F1*((A-D)/(A - (D/cos(2*phi))))*C K2fromBeta = F3*((A+D)/(A + (D/cos(2*phi))))*C % from aligned ellipse K1align = F1*C K2align = F3*C K45degalign = F2*C %find Keff zeta_deg = [0 15 60 90 105]; zeta = zeta_deg*pi/180; Keff = (K1*K2) ./ (K1.*sin(zeta).^2 + K2.*cos(zeta).^2 ) % create vector at time(s) with both S11 and S22 perms for data storage % purposes Ks_per_t = [t; K1; K2]; %clc disp('~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~') % Create test data output structure Radial_Permeability_Test_Data = struct( ... 'Test_Material',material,... 'Ply_Number',ply_num,... 'Fiber_Volume_Fraction_Vf',Vf,... 'Preform_Inlet_Diameter_in',inlet_diameter,... 'Average_Inlet_Pressure_psi',avg_psi_in, ... 'Standard_Deviation_of_Inlet_Pressure_psi',Pressure_StDev_psi,... 'Fluid_Viscosity_Pa_s',u,... 'Beta_Angle',beta,... 'K1', K1, ... 'K2', K2, ... 'Time_at_Measurement_s', t) REFERENCES