Dynamic Behavior of Materials, Volume 1

Preface 6
Contents 8
Chapter 1: Tensile Properties of Dyneema SK76 Single Fibers at Multiple Loading Rates Using a Direct Gripping Method 11
1.1 Introduction 11
1.2 Experiments 12
1.3 Results 12
References 13
Chapter 2: Statistical Characterization of Single PPTA Fiber Tensile Properties from High Strain Rate Tests 15
2.1 Introduction 15
2.2 Stochastic Fiber Fracture Model 16
2.3 Experimental Procedure 16
2.3.1 Single Fiber Tensile Tests 16
2.4 Results and Discussion 17
2.4.1 Non-parametric Analysis of the Tensile Strengths 17
2.4.2 Distributional Fits: Parameter Estimates and Confidence Limits 17
2.4.3 Assessing Goodness of Fit 18
2.5 Concluding Remarks 18
References 18
Chapter 3: Static and Dynamic Thermo-Mechanical Behavior of Ti2AlC MAX Phase and Fiber Reinforced Ti2AlC Composites 19
3.1 Introduction 19
3.2 Material Fabrication 20
3.3 Quasi-Static Characterization 20
3.4 Dynamic Characterization 20
3.5 Fracture Toughness 21
3.6 Quasi-Static Fracture Initiation Toughness 21
3.7 Dynamic Fracture Initiation Toughness 22
3.8 Results and Discussion 23
3.9 Conclusion 23
References 24
Chapter 4: Effects of Spherical Nanoparticle Addition on Dynamic Properties of Polyamide 11 25
4.1 Introduction 25
4.2 Experimental Methods 26
4.2.1 Materials and Specimens 26
4.2.2 Dynamic Tensile Tests 27
4.3 Results and Discussion 27
4.4 Conclusions 29
References 30
Chapter 5: Latest Results in Novel Inertial High Strain Rate Tests 31
5.1 Introduction 31
5.2 The Virtual Fields Method in Dynamics 32
5.3 Experimental Set-up 32
5.4 Results 34
5.5 Conclusion 35
References 36
Chapter 6: DIC in Dynamic Punch Testing 37
6.1 Introduction 37
6.2 Experimental Setup 38
6.3 Results and Discussion 39
6.4 Summary and Conclusions 42
References 43
Chapter 7: Specimen Design to Study the Dynamic Response of an Amorphous Polymer 44
References 46
Chapter 8: Micro-Raman Spectroscopic Evaluation of Residual Microstresses in Reaction Bonded Boron Carbide Ceramics 48
8.1 Introduction 48
8.2 Materials 49
8.3 Experimental 50
8.4 Results and Discussion 50
8.5 Conclusions 52
References 52
Chapter 9: Dynamic Response of Human Wisdom Teeth and Temporary Fillers 53
9.1 Introduction 53
9.2 Method and Material 54
9.2.1 SHPB 54
9.3 Teeth Structure 55
9.4 Temporary Crown 55
9.5 Material Preparation 56
9.6 Results and Discussion 56
9.7 Conclusion 58
References 59
Chapter 10: In Situ and Postmortem Measures of Damage in Polymers at High Strain-Rates 60
10.1 Introduction 60
10.2 Dyn-Ten-Ext at LANL Taylor Gun Facility 61
10.3 Dyn-Ten-Ext at APS IMPULSE 63
10.4 Conclusions 65
References 65
Chapter 11: Application of High Speed Imaging in Particle Dynamics Study with Explosives 67
11.1 Introduction 67
11.2 Experimental Analysis 67
11.3 Theoretical Detonation Physics of ANFO 69
11.4 Other Findings 70
11.5 Conclusions 70
Chapter 12: Damage Assessment in Metal Plates by Using Laser Vibrometer Measurements 72
12.1 Introduction 72
12.2 Laser Vibrometry Measurements for Damage Detection 73
12.3 Damage Detection Methodology 73
12.4 Experimental Verification 74
12.5 Conclusions 76
References 76
Chapter 13: Uncertainty of Strain Gage Measurements on Kolsky Bars 78
13.1 Introduction 78
13.2 Measuring Strain Gage Output 79
13.2.1 Gage Factor 80
13.2.2 Wheatstone Bridge 80
13.3 Circuit Sensitivity 81
13.4 Uncertainty Analysis 83
13.5 Conclusions 85
References 86
Chapter 14: Full-Field Deformation Observation of Polymer Foam Subjected to Shock Loading 87
14.1 Introduction 87
14.2 Experimental 88
14.2.1 Material and Specimen Geometry 88
14.2.2 Quasi-Static Testing 88
14.2.3 Dynamic Testing 89
14.3 Results and Discussion 90
14.3.1 Quasi-Static Loading 90
14.3.2 Dynamic Loading 91
14.4 Summary 92
References 93
Chapter 15: Explosive Blast Loading of Biosimulants Through Ballistic Protective Materials 94
15.1 Introduction 94
15.2 Experimental Methods 95
15.3 Results and Discussion 97
15.4 Summary 98
Appendix 99
References 100
Chapter 16: The Hugoniot Relationships for Nonlinear Elastic Substances 101
16.1 Introduction 101
16.2 The Master System in the Lagrangian Coordinates 102
16.3 Singular Surfaces 103
16.4 The Integral Conservation Laws 103
16.5 The Hugoniot Adiabat 105
16.5.1 Weak Shock Waves 106
16.5.2 Weak Shock Waves in Isotropic Elastic Substance 107
16.6 Conclusion 107
References 107
Chapter 17: Blast Performance of Foam Filled Sandwich Panels Under Extreme Temperatures 108
17.1 Introduction 108
17.2 Materials and Specimen 109
17.2.1 Material 109
17.2.2 Specimen 110
17.3 Results and Discussion 111
17.4 Conclusions 112
References 112
Chapter 18: Dynamics and Shock Waves in Media with Second Order Phase Transformations 113
18.1 Introduction 113
18.2 Vertical Oscillations of a Heavy Two-Layered Liquid System with a Piecewise Constant Sound Speed 114
18.3 Equilibrium Density Distribution 115
18.4 Dispersion Equations 115
18.5 The Ehrenfest Theory of the Second Order Phase Transformations 116
18.6 The Shock Waves in the Ehrenfest Liquid 117
18.7 Weak Shock Waves in Liquid Substances Undergoing Second Order Phase Transformations 118
18.8 Discussion and Conclusion 119
References 120
Chapter 19: Structural Changes in Lipid Vesicles Generated by the Shock Waves: Dissipative Particle Dynamics Simulation 121
19.1 Introduction 121
19.2 Model and Methods 122
19.3 Results and Discussion 123
19.4 Conclusion 125
References 125
Chapter 20: Effect of Threaded Joint Preparation on Impact Energy Dissipation Using Frequency-Based Kolsky Bar Analysis 127
20.1 Introduction 127
20.2 Impact Energy Analysis in the Frequency Domain 128
20.3 Experiments 129
20.4 Conclusion 131
References 132
Chapter 21: Experimental Observation of Slip Pulses During Onset of Sliding Friction 133
21.1 Introduction 133
21.2 Experimental Methods 134
21.2.1 Sample Preparation 134
21.2.2 Photoelasticity 135
21.2.3 Digital Image Correlation (DIC) 135
21.3 Results 136
21.4 Conclusions 139
References 139
Chapter 22: Observation of Dynamic Deformation Behavior Around Interface of Bi-material Using DIC 141
22.1 Introduction 141
22.2 Bi-material 142
22.3 Impact Test and Observation 142
22.4 Observation Result 143
22.5 Conclusion 147
References 147
Chapter 23: Experimental and Analytical Investigation of Carbon Fiber Cable Damping 148
23.1 Analytical Model 148
23.1.1 Description of Cable Geometry 148
23.1.2 Axial Strain of Helical Wires 149
23.1.3 Axial Strain due to Elongation 149
23.1.4 Axial Strain due to Rotation 150
23.1.5 Modeling of Contact and Friction Forces 151
23.1.6 Interwire Contacts and Friction 151
23.1.7 Determination of Vibration Damping 152
23.2 Results and Discussion 152
References 153
Chapter 24: Volume Damageability According to Criteria of Mechanical and Rolling Fatigue 154
24.1 Introduction 154
24.2 Stress-Strain State 154
24.3 Limiting Values 155
24.4 Dangerous Volumes 156
24.5 Conclusion 158
References 159
Chapter 25: Developments in the Characterization of Metallic Adhesion 160
25.1 Introduction 160
25.2 Experimental Results 162
25.3 Results 162
25.4 Discussion 163
25.5 Conclusions 165
References 165
Chapter 26: Stress Initiation and Propagation in Glass During Ring-on-Ring Testing 166
26.1 Introduction 166
26.2 Numerical Simulations 166
26.3 Simulation Results 167
26.4 Conclusions 167
26.5 Future Efforts 174
References 174
Chapter 27: Investigation of Cavitation Using a Modified Hopkinson Apparatus 175
27.1 Introduction 175
27.2 Methods 176
27.3 Results and Discussion 178
References 180
Chapter 28: Characterization of Structural Epoxy Adhesives 182
28.1 Introduction 182
28.2 Methods 183
28.2.1 Adhesive Material 183
28.2.2 Tensile Testing 183
28.2.3 Compressive Testing 183
28.2.4 Shear Testing 183
28.3 Results and Discussion 184
28.4 Conclusions 187
References 187
Chapter 29: Rate Dependent Response of Cross-Linked Epoxy Networks 189
29.1 Introduction 189
29.2 Experimental 190
29.3 Results and Discussion 190
29.4 Conclusions 192
References 192
Chapter 30: Dynamic Crack Propagation in Layered Transparent Materials Studied Using Digital Gradient Sensing Method 193
30.1 Introduction 193
30.2 Digital Gradient Sensing Method 194
30.3 Specimen Geometry and Preparation 194
30.4 Experimental Details 195
30.5 Crack Path Selection 196
30.6 Optical Measurements and Data Analysis 198
30.7 Work-in-Progress 198
30.8 Conclusion 201
References 201
Chapter 31: Fracture Toughness Testing of Advanced Silicon Carbide Ceramics Using Digital Image Correlation 202
31.1 Introduction 202
31.2 Materials 203
31.3 Experimental Procedure 204
31.4 Results 205
31.5 Conclusions 206
References 206
Chapter 32: Fracture of Pre-stressed Woven Glass Fiber Composite Exposed to Shock Loading 208
32.1 Introduction 208
32.2 Material and Specimen Geometry 209
32.3 Experimental Procedure 209
32.4 Data Analysis 210
32.4.1 Stress Intensity Factor Associated with the Applied Prestress 212
32.4.2 Dynamic Stress Intensity Factor and Crack Tip Velocity 212
References 214
Chapter 33: A Miniature Tensile Kolsky Bar for Thin Film Testing 215
33.1 Introduction 215
33.2 Experimental Method 216
33.3 Discussion of Measurement Techniques 217
33.4 Results 219
33.5 Conclusions 220
References 220
Chapter 34: High Temperature Tension HSB Device Based on Direct Electrical Heating 221
34.1 Introduction 221
34.2 Tensile Hopkinson Split Bar Device 222
34.3 The High Temperature HSB System 224
34.4 Examples of Tests with the High Temperature HSB System 226
34.5 Summary 227
References 227
Chapter 35: Dynamic Flow Stress Measurements for Machining Applications 228
35.1 Introduction 228
35.2 Results 229
35.2.1 Graphite Foil Model Evaluation 229
35.2.2 Pulse-Heated Steel Measurements 231
35.3 Conclusions 233
References 233
Chapter 36: Thermo-Mechanical Behavior of AA-2219 and AA-2195 at High Strain Rates 234
36.1 Introduction 234
36.2 Materials and Experiments 235
36.2.1 Materials 235
36.2.2 Dynamic Experiments 235
36.2.3 Quasi-static Experiments 237
36.3 Results and Discussion 237
36.4 Conclusion 239
References 239
Chapter 37: Rigid Angular Impact Responses of a Generic Steel Vehicle Front Bumper and Crush Can: Correlation of Two Velocity-... 241
37.1 Introduction 241
37.2 Experimental Procedures 241
37.3 Results and Discussion 244
37.4 Conclusions 244
References 248
Chapter 38: Force-Time History Assessment of a Generic Steel Vehicle Front Bumper and Crush Can Subjected to a Rigid Center Po... 249
38.1 Introduction 249
38.2 Experimental Procedures 250
38.3 Results and Discussion 253
38.4 Conclusions 255
References 257
Chapter 39: Damage of Two Concrete Materials due to Enhanced Shaped Charges 258
39.1 Introduction 258
39.2 Experimental Set-Up 259
39.3 Experimental Results 260
39.4 High Strain Rate Characterisation 263
39.5 Numerical Analysis of the Target Damage 264
39.6 Discussion and Conclusions 266
References 267
Chapter 40: Influence of Free Water and Strain-Rate on the Behaviour of Concrete Under High Confining Pressure 269
40.1 Introduction 269
40.2 Quasi-static Experiments Performed on R30A7 Concrete 270
40.3 Dynamic Quasi-oedometric Experiments Performed on Wet R30A7 Concrete 271
40.4 Conclusion 272
References 272
Chapter 41: Numerical Investigation of Impact Condition Effects on Concrete Penetration 274
41.1 Introduction 274
41.2 Setup 275
41.3 Results 276
41.4 Discussion 277
41.5 Conclusions 281
References 282
Chapter 42: On the Damage Mechanisms Involved in Different Geomaterials Subjected to Edge-on Impact Experiments 283
42.1 Introduction 283
42.2 Experiments Performed on Common Concrete and Microconcrete 284
42.3 Experiments Performed on Ultra-high Performance Concrete 285
42.4 Experiments Performed on Two Limestone Rocks 286
42.5 Conclusion 287
References 287
Chapter 43: Effect of Boundary Conditions on the Thermo-Mechanical Response of Hastelloy X Plates Subjected to Shock Loading 288
43.1 Introduction 288
43.2 Material and Specimen 289
43.2.1 Material 289
43.2.2 Specimen 289
43.3 Experiment Setup and Procedure 290
43.3.1 Shock Tube 290
43.3.2 High Speed Photography System 290
43.3.3 Experimental Procedure 290
43.4 Results and Discussion 290
References 292
Chapter 44: Experimental Studies of the Matrix Detonating Cord Charge 293
44.1 Introduction 293
44.2 Experimental Setup and Procedures 293
44.3 Results and Analysis 295
44.4 Conclusions 303
References 304
Chapter 45: The Characterization of Ammonium Nitrate Mini-Prills 305
45.1 Introduction 305
45.2 Materials 306
45.3 Morphology 306
45.3.1 Scanned Electron Microscopy (SEM) 306
45.4 Influence of Critical Diameter on VOD 307
45.5 Influence of ANFO Shelf Life on VOD 308
45.6 Conclusion 308
References 310
Chapter 46: High-Strain Rate Compressive Behavior of Dry Mason Sand Under Confinement 311
46.1 Introduction 311
46.2 Experimental 312
46.3 Results and Discussion 313
46.4 Conclusions 318
References 318
Chapter 47: Scale Bridging Interactions During Penetration of Granular Materials 320
47.1 Introduction 320
47.2 Experiments 321
47.3 Results 321
47.4 Discussion 322
47.5 Implications for Scale Bridging Models 323
47.6 Conclusions 324
References 325
Chapter 48: Experimental Investigation on Material Dynamic Behaviors Using Ultra-high-speed Cameras 326
48.1 Introduction 326
48.2 Experimental Set-up 327
48.3 Experimental Results 327
48.4 Discussion 328
48.5 Conclusions 334
References 335
Chapter 49: Application of 3-D Digital Image Correlation Technique to Study Underwater Implosion 336
49.1 Introduction 336
49.2 Experimental Setup 337
49.2.1 Underwater Pressure Vessel Facility 337
49.2.2 Underwater 3-D Digital Image Correlation Calibration Setup 338
49.3 Experimental Results and Discussion 339
49.3.1 Underwater 3D DIC Calibration Results 339
49.3.2 Underwater Implosion Results 339
References 341
Chapter 50: Dynamic Analysis of a Plate Loaded by Explosively Driven Sand 342
50.1 Introduction 342
50.2 Model 343
50.3 Shock Consolidation 344
50.4 Experimental Set-Up 348
50.5 Modelling and Comparison with Experiments 349
50.6 Discussion and Conclusions 352
References 353
Chapter 51: Simulating the Planar Shock Response of Concrete 354
51.1 Introduction 354
51.2 Experimental Background 355
51.3 Motivation 355
51.4 Hugoniot Solving 356
51.5 Geometry Construction 357
51.6 Simulation Setup 358
51.7 Experimental and Simulated Velocity Profiles 359
51.8 Interface Testing 359
51.9 Conclusions 362
References 362
Chapter 52: Mesoscale Simulations of Dry Sand 363
52.1 Introduction 363
52.2 Experimental Setup 363
52.3 Simulation Setup 364
52.3.1 iSALE Hydrocode Setup 365
52.3.2 CTH Hydrocode Setup 366
52.4 Result 367
52.4.1 iSALE and CTH VISAR Results 367
52.4.2 Hugoniot Results 368
52.4.3 Stress-Strain 370
52.5 Conclusions 371
References 372
Chapter 53: Perforation of 6082-T651 Aluminum Plates with 7.62mm APM2 Bullets at Normal and Oblique Impacts 373
53.1 Introduction 373
53.2 Projectiles 374
53.3 AA6082-T651 Target Plates 374
53.4 The 7.62mm APM2 Bullet and Hard Steel Core Experiments 376
53.5 Cavity-Expansion Model 378
53.6 Summary and Discussion 385
References 385

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