List of Tables .................................................. v
List of Figures ................................................ vi
Chapter 1 Introduction ......................................... 1
1.1 Motivation ................................................. 1
1.2 Literature review .......................................... 2
1.2.1 Early understanding of FAST from experiments ........ 4
1.2.2 Early attempts of modeling of FAST .................. 6
1.2.3 Critical needs ...................................... 7
1.3 Goals of this work ......................................... 7
Chapter 2 Simplified Lumped Electric Resistance Model .......... 10
2.1 Introduction .............................................. 10
2.2 Simplified lumped electric circuit model .................. 10
2.3 Results and discussion .................................... 11
2.4 Summary ................................................... 15
Chapter 3 Coupled Thermal Electric-Densification Finite
Element Model ....................................... 16
3.1 Introduction .............................................. 16
3.2 Modeling framework ........................................ 16
3.2.1 Theory ............................................. 16
3.2.2 Numerical implementation ........................... 17
3.3 Evaluation of the model ................................... 23
3.3.1 Experimental work .................................. 23
3.3.2 FE model ........................................... 24
3.3.3 Experimental results ............................... 27
3.3.4 FE model results ................................... 28
3.4 Summary ................................................... 43
Chpter 4 Discrete Finite Element Model ........................ 45
4.1 Introduction .............................................. 45
4.2 Method .................................................... 45
4.3 Simulation setup .......................................... 46
4.3.1 Mechanical compaction .............................. 47
4.3.2 Thermal property extraction ........................ 49
4.4 Experimental procedure .................................... 52
4.5 Results and discussion .................................... 53
4.5.1 Mechanical compaction .............................. 53
4.5.2 Evolution of effective thermal conductivity ........ 55
4.6 Summary ................................................... 58
Chapter 5 Conclusions and Future Work .......................... 59
Appendix A: ABAQUS User Subroutines ............................ 60
Appendix B: Procedure for Calibration of Contact Resistance .... 64
Appendix C: Case Study of FAST ................................. 72
C.l Introduction .......................................... 72
С.2 Simulation setup ...................................... 74
C.3 Results and discussion ................................ 76
C.4 Summary ............................................... 84
Acknowledgements ............................................... 85
References ..................................................... 86
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