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Introduction 1
Going variational 9
Griffith's theory 10
The 1-homogeneous case - A variational equivalence 14
Smoothness - The soft belly of Griffith's formulation 18
The non 1-homogeneous case - A discrete variational evolution 21
Functional framework - A weak variational evolution 22
Cohesiveness and the variational evolution 27
Stationarity versus local or global minimality - A comparison 31
1d traction 31
The Griffith case - Soft device 31
The Griffith case - Hard device 33
Cohesive case - Soft device 34
Cohesive case - Hard device 38
A tearing experiment 42
Initiation 47
Initiation - The Griffith case 48
Initiation - The Griffith case - Global minimality 48
Initiation - The Griffith case - Local minimality 55
Initiation - The cohesive case 58
Initiation - The cohesive 1d case - Stationarity 58
Initiation - The cohesive 3d case - Stationarity 61
Initiation - The cohesive case - Global minimality 67
Irreversibility 70
Irreversibility - The Griffith case - Well-posedness of the variational evolution 70
Irreversibility - The Griffith case - Discrete evolution 70
Irreversibility - The Griffith case - Global minimality in the limit 74
Irreversibility - The Griffith case - Energy balance in the limit 78
Irreversibility - The Griffith case - The time-continuous evolution 80
Irreversibility - The cohesive case 83
Path 90
Griffith vs. Barenblatt 103
Numerics and Griffith 107
Numerical approximation of the energy 108
The first time step 109
Quasi-static evolution 114
Minimization algorithm 115
The alternate minimizations algorithm 116
The backtracking algorithm 117
Numerical experiments 119
The 1D traction (hard device) 119
The tearing experiment 122
Revisiting the 2D traction experiment on a fiber reinforced matrix 132
Fatigue 135
Peeling evolution 137
The limit fatigue law when d [characters not reproducible] 0 139
A variational formulation for fatigue 147
Peeling revisited 147
Generalization 149
Appendix 151
Glossary 156
References 160
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Add The Variational Approach to Fracture, This volume offers a panorama of the variational approach to brittle fracture that has developed in the past eight years or so. The key concept dates back to Griffith and consists in viewing crack growth as the result of a competition between bulk and sur, The Variational Approach to Fracture to the inventory that you are selling on WonderClubX
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Add The Variational Approach to Fracture, This volume offers a panorama of the variational approach to brittle fracture that has developed in the past eight years or so. The key concept dates back to Griffith and consists in viewing crack growth as the result of a competition between bulk and sur, The Variational Approach to Fracture to your collection on WonderClub |