Mechanics of Composite, Hybrid and Multifunctional Materials, Volume 5

Preface 6
Contents 7
1 Stimulus-Responsive Interfacial Chemistry in CNT/Polymer Nanocomposites 10
1.1 Introduction 10
1.2 Experimental Methods 11
1.2.1 Functionalization of CNT Films 11
1.2.2 Fabrication and UV Treatment of Layered Composites 11
1.2.3 Experimental Characterization 12
1.3 Results and Discussion 12
1.3.1 Characterization of CNT Functionalization 13
1.3.2 Photoreaction of Benzophenone 14
1.3.3 Mechanical Behavior of CNT/PDMS Nanocomposites 14
1.4 Conclusion 16
References 16
2 Devulcanized Rubber Based Composite Design Reinforced with Nano Silica, Graphene Nano Platelets (GnPs) and Epoxy for “Aircraft Wing Spar” to Withstand Bending Moment 18
2.1 Introduction 18
2.2 Experimental Conditions 19
2.2.1 Materials Processing 19
2.2.2 Mechanical, Microstructure, Fracture Surface Analyses and Shore-D Hardness Measurements 20
2.2.3 Wear Resistance (Scratch Test) and Damage Analysis Via 3D Optical Roughness Meter 21
2.3 Results and Discussions 21
2.3.1 Microstructural Evaluation of the Composites 21
2.3.2 Three Point Bending Tests and Fracture Surface Observation 21
2.3.3 Drop Weight Testing 24
2.3.4 Damage Analysis by Means of Micro Scratch Test and 3D Optical Surface Roughness Meter 25
2.3.5 Numerical Approach for These Composites 25
2.4 Conclusion 30
References 30
3 Study of Mechanical Characteristics of Banana and Jute Fiber Reinforced Polyester Composites 32
3.1 Introduction 32
3.2 Materials and Methodology 33
3.2.1 Materials 33
3.2.2 Methodology 34
3.3 Results and Discussions 34
3.3.1 Tensile Strength Test 34
3.3.2 Flexural Strength Test 35
3.4 Conclusions 37
References 38
4 Toughening Mechanism in Epoxy Resin Modified Recycled Rubber Based Composites Reinforced with Gamma-Alumina, Graphene and CNT 39
4.1 Introduction 39
4.2 Experimental Conditions 40
4.2.1 Materials Processing 40
4.2.2 Microstructure: Fracture Surface Analyses and Shore-D Hardness Measurements 41
4.2.3 Wear Resistance (Scratch Test) and Damage Analysis Via 3D Optical Roughness Meter 41
4.3 Results and Discussions 42
4.3.1 Microstructure of the Composites 42
4.3.2 Three Point Bending Tests and Fracture Surface Observation 42
4.3.2.1 Flexural Testing and Fracture Toughness Determination 42
4.3.3 Charpy Impact Testing 45
4.3.4 Damage Analysis by Means of Scratch Test and 3d Optical Roughness Meter 45
4.4 Conclusion 45
References 47
5 AlSi10Mg Nanocomposites Prepared by DMLS Using In-Situ CVD Growth of CNTs: Process Effects and Mechanical Characterization 48
5.1 Introduction 48
5.2 Experimental Procedure 49
5.2.1 CVD Growth of CNTs on AlSi10Mg Powders 49
5.2.2 DMLS of Specimens and Heat Treatment 49
5.2.3 Tensile Experiments 50
5.3 Results and Discussion 51
5.3.1 Tensile Test Results 51
5.3.2 SEM Analysis of Failure Surface 51
5.4 Conclusion 52
References 53
6 Optimization of Surface Integrity of Titanium-Aluminum Intermetallic Composite Machined by Wire EDM 54
6.1 Introduction 54
6.2 Experimental Procedure 55
6.2.1 Equipment, Materials and Measurement 55
6.2.2 Wire Electric Discharge Machining Process and Cutting Parameters 55
6.2.3 Influence of Cutting Parameters on the Surface Roughness 57
6.3 Statistical Analysis 60
6.4 Conclusion 63
References 63
7 Design of Cost Effective Epoxy + Scrap Rubber Based Composites Reinforced with Titanium Dioxide and Alumina Fibers 65
7.1 Introduction 65
7.2 Experimental Conditions 66
7.2.1 Materials Processing 66
7.2.2 Experimental Procedure 67
7.3 Results and Discussions 67
7.3.1 Microstructure of the Composites 67
7.3.2 Three Point Bending Tests and Fracture Surface Observation 67
7.3.3 Time Dependent Behaviour by Means of NanoIndentation 69
7.3.4 Wear Testing by Nanoindentation 70
7.4 Conclusions 70
References 72
8 Reinforcement of Recycled Rubber Based Composite with Nano-Silica and Graphene Hybrid Fillers 73
8.1 Introduction 73
8.2 Experimental Conditions 74
8.2.1 Materials Processing 74
8.2.2 Microstructure: Fracture Surface Analyses and Shore-D Hardness Measurements 75
8.2.3 Wear Resistance (Scratch Test) and Damage Analysis via 3D Optical Roughness Meter 75
8.3 Results and Discussions 76
8.3.1 Microstructure of the Composites 76
8.3.2 Three Point Bending Tests and Fracture Surface Observation 76
8.3.2.1 Flexural Testing and Fracture Toughness Determination 76
8.3.3 Charpy Impact Testing 79
8.3.4 Damage Analysis by Means of Scratch Test and 3d Optical Roughness Meter 79
8.4 Conclusion 79
References 81
9 Testing the 2-3 Shear Strength of Unidirectional Composite 83
9.1 Introduction 83
9.2 Experimental Methodology 84
9.3 Results 86
9.4 Analysis & Discussion 87
9.5 Conclusions 89
References 90
10 Nondestructive Damage Detection of a Magentostricive Composite Structure 91
10.1 Introduction 91
10.2 Preliminary Results 92
10.3 Conclusion 93
References 93
11 Thermo-Mechanical Properties of Thermoset Polymers and Composites Fabricated by Frontal Polymerization 94
References 96
12 Design of Magnetic Aluminium (AA356) Composites (AMCs) Reinforced with Nano Fe3O4, and Recycled Nickel: Copper Particles 97
12.1 Introduction 97
12.2 Experimental Conditions 98
12.3 Results and Discussion 99
12.3.1 Microstructural Evaluation of the Composites 99
12.3.2 Evaluation of Magnetic Properties for A356-I, II, III, IV 99
12.3.3 Static Compression Test Results and Micro Hardness Measurements 99
12.3.4 Wear Resistance by Scratch Test 102
12.4 Conclusions 102
References 103
13 Reinforcement Effect of Nano Fe3O4 and Nb2Al on the Mechanical and Physical Properties of Cu-Al Based Composites 105
13.1 Introduction 105
13.2 Experimental Conditions 106
13.3 Results and Discussion 107
13.3.1 Microstructure and Mapping Analyses of the Compositions Produced by “Sinter+ Forging Process 107
13.3.2 Macro Wear (Scratch Test) Results 107
13.3.3 Nano Wear Testing Results Obtained by Nanoindentation 108
13.3.4 Static Compression Test Results and Micro Hardness Measurements 109
13.4 Evaluation of Magnetic Properties for CAF2 Produced with “Sinter + Forging” Process 110
13.5 Conclusions 111
References 111
14 Recycled Ti-17 Based Composite Design; Optimization Process Parameters in Wire Cut Electrical Discharge Machining (WEDM) 113
14.1 Introduction 113
14.2 Experimental Procedure 114
14.2.1 Equipment, Materials and Measurement 114
14.2.2 Wire Electric Discharge Machining Process and Cutting Parameters 114
14.2.3 Influence of Machining Parameters on Performance of WEDM Process 117
14.2.3.1 Influence of Machining Parameters on Kerf Width 117
14.2.3.2 Influence of Machining Parameters on Material Removal Rate MRR 117
14.3 Statistical Analysis 122
14.4 Conclusions 127
References 128
15 Alternative Composite Design from Recycled Aluminum Chips for Mechanical Pin-Joint (Knuckle) Applications 130
15.1 Introduction 130
15.2 Experimental Conditions 131
15.2.1 Materials Processing 131
15.3 Results and Discussions 131
15.3.1 Microstructure and Mapping Analyses of the Three Compositions Produced by “Sintering” and “Sinter+ Forging Process” 131
15.3.2 Mapping Analyses of the Three Compositions Produced by Sinter+ Forging Process 133
15.3.3 Static Compression Test Results 133
15.3.4 Low Velocity or Dynamic Compression (Drop Weight) Test Results 135
15.3.5 Wear (Scratch) Test Results 136
15.4 Conclusions 136
References 138
16 Manufacturing of Copper Based Composites Reinforced with Ceramics and Hard Intermetallics for Applications of Electric Motor Repair Parts 139
16.1 Introduction 139
16.2 Experimental Conditions 140
16.3 Results and Discussions 141
16.3.1 Microstructure and Mapping Analyses of the Compositions Produced by “Sinter + Forging Process” 141
16.3.2 Wear (Scratch) Test Results 141
16.4 Conclusion 143
References 146
17 Damping and Toughening Effect of the Reinforcements on the Epoxy Modified Recycled + Devulcanized Rubber Based Composites 148
17.1 Introduction 148
17.2 Experimental Conditions 149
17.2.1 Materials Processing 149
17.2.2 Microstructure: Fracture Surface Analyses and Shore-D Hardness Measurements 150
17.2.3 Damage Analysis by Means of Scratch Test and 3D Optical Roughness Meter 150
17.3 Results and Discussions 150
17.3.1 Specimens and Microstructure Analyses of the Composites 150
17.3.2 Three Point Bending (3PB) Test Results and Fracture Surface Observation 151
17.3.2.1 Flexural Testing and Fracture Toughness Determination 152
17.3.3 Charpy Impact Testing 153
17.3.4 Wear Resistance by Scratch Test and Damage Analyses by Means of 3D Optical Roughness Meter 153
17.4 Conclusion 155
References 158
18 Impact and Post-impact Behavior of Composite Laminates Reinforced by Z-Pins 160
18.1 Introduction 160
18.2 Materials and Testing Methods 161
18.3 Impact and CAI Tests 162
18.4 Results 163
18.5 Conclusions 167
References 167
19 Layered Jamming Multifunctional Actuators 169
19.1 Introduction 169
19.2 Designing and Manufacturing Layered Multifunctional Materials 170
19.3 Modeling Structural Response of Soft Actuator with Jamming Layers 171
19.4 Layered Jamming Multifunctional Actuators 172
19.4.1 Layered Jamming Structure 172
19.4.2 Prototype for a Layered Jamming Multifunctional Actuator 173
19.4.3 Layered Jamming for Multi-mode Control of Extension and Bending for Soft Actuators 175
19.4.4 Integration of Layered Jamming Actuators in a Robot: ArmadilloBot 177
19.5 Conclusions 177
References 178
20 2D Microscale Observations of Interlaminar Transverse Tensile Fracture in Carbon/Epoxy Composites 180
20.1 Introduction 180
20.2 Experimental Methodology 180
20.3 Results and Discussion 181
20.4 Conclusion 182
References 182
21 Electro-Mechanical Response of Polymer Bonded Surrogate Energetic Materials with Carbon Nanotube Sensing Networks for Structural Health Monitoring Applications 183
Nomenclature 183
21.1 Introduction 184
21.2 Experimental Setup 184
21.2.1 Materials Selection 184
21.2.2 Fabrication 185
21.2.3 Test Apparatus and Procedure 185
21.3 Results and Discussion 187
21.3.1 Visual Fracture Analysis 187
21.3.2 Piezoresistive Sensing 188
21.4 Conclusion 190
References 190
22 Strength and Energy Absorption Capability of Porous Magnesium Composites Reinforced by Carbon Nanofibers 192
22.1 Introduction 192
22.2 Experimental Methods 192
22.3 Results and Discussion 193
22.4 Conclusion 196
References 197
23 Mechanical Characterization of Open Cell Aluminum Foams Using X-ray Computed Tomography 198
23.1 Introduction 198
23.2 Experimental Methods 198
23.3 Results and Discussion 199
23.4 Conclusions 200
References 200
24 Damage Detection and Visco-Elastic Property Characterization of Composite Aerospace Panels Using Ultrasonic Guided Waves 201
24.1 Introduction 201
24.2 Problem Statement and Approach 201
24.3 Characterization 202
24.4 Inspection 203
24.5 Conclusions 204
References 204
25 Microscale Investigation of Transverse Tensile Failure of Fiber-Reinforced Polymer Composites 205
25.1 Introduction 205
25.2 Specimen Preparation and Experimental Methods 205
25.3 Results and Discussion 206
25.4 Conclusions 208
References 208
26 Optimization of Kerf Quality During CO2 Laser Cutting of Titanium Alloy Sheet Ti-6Al-4V and Pure Titanium Ti 209
26.1 Introduction 209
26.2 Experimental Work 210
26.3 Design of Experiment 210
26.4 Results and Discussion 211
26.5 Kerf Width Optimization 213
26.6 Conclusion 215
References 215
27 A Study of the Surface Integrity of Titanium Alloy Ti-6Al-4V in the AbrasiveWater Jet Machining Process 216
27.1 Introduction 216
27.2 Materials and Experimental Set-Up 217
27.3 Results and Discussions 218
27.3.1 Microstructure of Cut Edge 218
27.3.2 Surface Roughness Analysis 219
27.4 Analyzing and Evaluating Results of the Experiments Using Taguchi Method 220
27.5 Conclusion 222
References 222
28 Process Reliability of Abrasive Water Jet to Cut Shapes of the Titanium Alloy Ti-6Al-4V 224
28.1 Introduction 224
28.2 Experimental Setup 225
28.2.1 Material Work 225
28.2.2 Worpiece to Cut 226
28.2.3 Experiments Machine 226
28.2.4 Variables Parameters and Factors Studied 226
28.3 Surface Morphology 227
28.4 Kerf Width Analysis 228
28.5 Results Kerf Analysis Using Taguchi Method 229
28.6 Conclusions 231
References 231
29 Optimization of the High Energy Milling Process of Chips of a Stainless Steel Using the Response Surface Modeling 232
29.1 Introduction 232
29.2 Experimental Conditions 233
29.2.1 Materials and Process Used in this Work 233
29.2.2 Experimental Procedure 233
29.2.3 Structural Characterization 233
29.3 Results and Discussion 234
29.4 Conclusion 236
References 237
30 Iron Contents on Recycle Aluminum and Influence on Mechanical Properties 238
30.1 Introduction 238
30.2 Experimental Procedure 238
30.3 Results and Discussion 239
30.4 Conclusions 241
References 242
31 Experimental Comparison of the Microstructure and Surface Roughness in CO2 Laser Cutting of the Titanium Alloy Ti–6Al–4V and the Pure Titanium Ti 243
31.1 Introduction 243
31.2 Experimental Research 244
31.3 Experimental Results 245
31.3.1 Cut Edge Microstructure Analysis for Titanium Alloy Ti-6Al-4V and Pure Titanium Ti 245
31.3.2 Roughness Analysis for Titanium Alloy Ti-6Al-4V and Pure Titanium Ti 247
31.4 Conclusion 248
References 248
32 Influence of Crumb Rubber Reinforcement on the Properties of Medium Density Fiberboard 250
32.1 Introduction 250
32.2 Materials and Methodology 251
32.2.1 Density Measurements 251
32.2.2 Compression Experiments 251
32.2.3 Flexural Experiments 252
32.2.4 Moisture Absorption Tests 253
32.2.5 Fourier Transform Infrared Spectroscopy 253
32.3 Results and Discussion 253
32.3.1 Density 253
32.3.2 Mechanical Properties 253
32.3.3 Moisture Absorption 255
32.3.4 SEM Analysis 256
32.3.5 Fourier Transform Infrared Analysis 256
32.4 Conclusion 256
References 257
33 Sub-components of Wind Turbine Blades: Proof of a Novel Trailing Edge Testing Concept 259
33.1 Introduction 259
33.2 Methodology 260
33.2.1 Testing Concept 260
33.2.2 Models 260
33.2.3 Experimental 261
33.2.3.1 Setup 261
33.2.3.2 Specimen Preparation 261
33.2.3.3 Measurement Equipment 262
33.3 Experimental Results and Model Validation 263
33.3.1 Geometry Comparison 263
33.3.2 Strain Response Along the Trailing Edge 263
33.3.3 Strain Response Across the Target Cross-section 264
33.3.4 Displacement Response 265
33.4 Conclusions 266
References 266
34 Toughening Mechanisms on Recycled Rubber Modified Epoxy Based Composites Reinforced with Alumina Fibers 267
34.1 Introduction 267
34.2 Experimental Procedure 268
34.2.1 Material Processing 268
34.2.2 Experimental Procedure 268
34.3 Results and Discussions 269
34.3.1 Microstructure of the Composites and Surface Hardness 269
34.3.2 Dynamic Mechanical Analysis 270
34.3.3 Bending Tests and Fracture Toughness Determination 271
34.4 Conclusion 273
References 273
35 Toughening Mechanisms on Recycled Rubber Modified Epoxy Based Composites Reinforced with Graphene Nanoplatelets 275
35.1 Introduction 275
35.2 Experimental Procedure 276
35.2.1 Composite Manufacturing 276
35.2.2 Experimental Procedures 277
35.3 Results and Discussions 277
35.3.1 Microstructure of the Composites and Surface Hardness 277
35.3.2 Bending Tests and Fracture Toughness Determination 278
35.3.3 Time Dependent Behaviour by Means of Nano-indentation 279
35.4 Conclusion 281
References 282
36 Damage Accumulation in CMCs 283
36.1 Introduction 283
36.2 Experimental Method and Materials 284
References 284
37 Investigating Intralaminar Crack Growth in Biaxially Stressed Composites 285
References 286
38 Determination of Stress Free Temperature in Composite Laminates for Residual Stress Modeling 287
References 290
39 Calibration of a Simple Rate Dependent Elastic-Plastic Constitutive Model for a Toughened Carbon Epoxy Composite System 291
References 293
40 Imaging the Life-Cycle of CMCs Using High-Resolution X-Ray Computed Tomography 294
40.1 Introduction 294
40.2 Experimental Methods 294
40.3 Results and Discussion 295
40.4 Conclusion 296
References 297
41 Effect of Process Induced Residual Stress on Interlaminar Fracture Toughness on Hybrid Composites 298
References 300
42 Analysis of Interfaces in AA7075/ Recycled WC Particles Composites Produced via Liquid Route 302
42.1 Introduction 302
42.2 Experimental Procedures 303
42.3 Results and Discussions 304
42.3.1 Microstructure of the Composites. 304
42.3.2 SEM and EDS Microanalyses of the Composites 306
42.3.3 Phenomena Involved in the Formation of the Reaction Layer. 309
42.4 Conclusions 310
References 310
43 Investigation on Microstructure and Interfaces in Graded FE50007 / WC CompositesProduced by Casting 312
43.1 Introduction 312
43.2 Experimental Procedures 313
43.3 Results and Discussions 314
43.3.1 General Results 314
43.3.2 Microstructure in the Hammer Body 314
43.3.3 Microstructure in the Hammer Head: Striking Surface 315
43.3.4 Preliminary Evaluation of Wear Behaviour of the Developed Crusher 318
43.4 Conclusions 319
References 320
44 In-Situ Imaging of Flexure-Induced Fracture in Fiber-Reinforced Composites Using High-Resolution X-Ray Computed Tomography 321
44.1 Introduction 321
44.2 Experimental Methodology 321
44.3 Results and Discussion 323
44.4 Conclusions 323
References 324

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