Page 11 - 3D Fibre Reinforced Polymer Composites

6.3 Fracture Toughness and Damage Performance 143
6.4 Fatigue Performance 145
6.5 Modelling of Braided Composites 145
6.6 Summary 146

Chapter 7 Knitted Composite Materials 147
7.1 Introduction 147
7.2 In-Plane Mechanical Properties 149
7.2.1 Tensile Properties 149
7.2.2 Compressive Properties 154
7.2.3 In-Plane Properties of Non-Crimp Fabrics 156
7.3 Interlaminar Fracture Toughness 158
7.4 Impact Performance 159
7.4.1 Knitted Composites 159
7.4.2 Non-Crimp Composites 161
7.5 Modelling of Knitted Composites 161
7.6 Summary 162

Chapter 8 Stitched Composites 163
8.1 Introduction to Stitched Composites 163
8.2 The Stitching Process 164
8.3 Mechanical Properties of Stitched Composites 169
8.3.1 Introduction 169
8.3.2 Tension, Compression and Rexure Properties of Stitched Composites 170
8.3.3 Interlaminar Shear Properties of Stitched Composites 176
8.3.4 Creep Properties of Stitched Composites 178
8.3.5 Fatigue Properties of Stitched Composites 179
8.4 Interlaminar Properties of Stitched Composites 182
8.4.1 Mode I Interlaminar Fracture Toughness Properties 182
8.4.2 Mode 11 Interlaminar Fracture Toughness Properties 189
8.5 Impact Damage Tolerance of Stitched Composites 195
8.5.1 Low Energy Impact Damage Tolerance 195
8.5.2 Ballistic Impact Damage Tolerance 199
8.5.3 Blast Damage Tolerance 200
8.6 Stitched Composite Joints 20 1
Chapter 9 Z-Pinned Composites 205
9.1 Introduction 205
9.2 Fabrication of Z-Pinned Composites 206
9.3 Mechanical Properties of Z-Pinned Composites 209
9.4 Delamination Resistance and Damage Tolerance of Z-Pinned Composites 21 1
9.5 Z-Pinned Joints 216
9.6 Z-Pinned Sandwich Composites 217

References 219

Subject Index 237