Smart Textiles for In Situ Monitoring of Composites
By Vladan Koncar
Contents:
General introduction vii
1 Smart textiles for monitoring and measurement applications 1
1.1 Introduction 1
1.2 Smart textiles 1
1.3 Sensorsd definitions and classifications 2
1.4 Connectors 27
1.5 Conductive polymers, fibers, and structures 49
1.6 Materials and sensors for glass fibers based composites monitoring 95
References 142
Further reading 146
2 Composites and hybrid structures 153
2.1 Composites dterms and definitions 153
2.2 Textile reinforced composites 159
2.3 Outlook dcomposite structures 184
2.4 Reinforcing fibers 185
2.5 Matrices 194
2.6 Failure mechanisms in composites 196
2.7 Hybrid structures, production methodology and principles, state of the art 200
2.8 Hybrid structuresdbonding issuesdinnovative joining techniques 201
2.9 Conclusion 205
References 205
Further reading 210
3 Structural health monitoring of composite structures 217
3.1 Health monitoring definitions 217
3.2 State of the art of monitoring techniques 217
3.3 Characterization of textile sensors before insertion in textile preforms 222
3.4 Characterization of textile sensors after insertion in textile preforms 229
3.5 Results and discussion interface phenomena 250
3.6 Results and discussion tomography analysis of textile reinforced
2D thermoplastic composites with integrated textile sensors 260
3.7 Results and discussion electrical resistance dependence of textile sensors on climatic conditions 262
3.8 ResultsdSEM and EDS analysis of yarns 264
3.9 Results and discussiond thermal properties of yarns and textile reinforced 2D thermoplastic composites with
integrated sensor yarns 270
3.10 Toward wireless structural health monitoring 277
3.11 Predictive maintenance concept 281
3.12 Conclusion 283
References 283
Further reading 284
4 Structural health monitoring of processes related to composite manufacturing 295
4.1 Study case 1, interlock weaving process monitoring 295
4.2 Study case 2, Stamping process supervision 348
4.3 Study case 3, Infusion process supervision 360
References 371
Further reading 372
5 General conclusion 383
Acknowledgments 385
Index 387