Damage Mechanics of Cementitious Materials and Structures

ISBN-13: 9781848213401 / Angielski / Twarda / 2012 / 255 str.

Gilles Pijaudier-Cabot

Opis

The book, prepared in honor of the retirement of Professor J. Mazars, provides a wide overview of continuum damage modeling applied to cementitious materials.
It starts from micro-nanoscale analyses, then follows on to continuum approaches and computational issues. The final part of the book presents industry-based case studies.
The contents emphasize multiscale and coupled approaches toward the serviceability and the safety of concrete structures.

Spis treści

Preface xi
Gilles PIJAUDIER–CABOT and Frédéric DUFOUR

Chapter 1. Bottom Up: From Atoms to Concrete Structures 1
Franz–Josef ULM and Roland J–M PELLENQ

1.1. Introduction 1

1.2. A realistic molecular model for calcium–silicatehydrates 2

1.3. Probing C–S–H microtexture by nanoindentation 9

1.4. Conclusions 15

1.5. Bibliography 16

Chapter 2. Poromechanics of Saturated Isotropic Nanoporous Materials 19
Romain VERMOREL, Gilles PIJAUDIER–CABOT,Christelle MIQUEU and Bruno MENDIBOURE

2.1. Introduction 20

2.2. Results from molecular simulations 22

2.3. Poromechanical model 24

2.4. Adsorption–induced swelling and permeability change in nanoporous materials 37

2.5. Discussion interaction energy and entropy 42

2.6. Conclusions 46

2.7. Acknowledgments 47

2.8. Bibliography 48

Chapter 3. Stress–based Non–local Damage Model 51
Cédric GIRY and Frédéric DUFOUR

3.1. Introduction 52

3.2. Non–local damage models 57

3.3. Initiation of failure 67

3.4. Bar under traction 70

3.5. Description of the cracking evolution in a 3PBT of a concrete notched beam 79

3.6. Conclusions 82

3.7. Acknowledgments 84

3.8. Bibliography 84

Chapter 4. Discretization of Higher Order Gradient Damage Models Using Isogeometric
Finite Elements 89
Clemens V. VERHOOSEL, Michael A. SCOTT, Michael J. BORDEN, Thomas J.R. HUGHES and René DE BORST

4.1. Introduction 89

4.2. Isotropic damage formulation 91

4.3. Isogeometric finite elements 97

4.4. Numerical simulations 103

4.5. Conclusions 115

4.6. Acknowledgments 116

4.7. Bibliography 116

Chapter 5. Macro and Mesoscale Models to Predict Concrete Failure and Size Effects 121
David GRÉGOIRE, Peter GRASSL, Laura B. ROJAS–SOLANO and Gilles PIJAUDIER–CABOT

5.1. Introduction 122

5.2. Experimental procedure 125

5.3. Numerical simulations 134

5.4. Conclusions 152

5.5. Acknowledgments 153

5.6. Bibliography 153

Chapter 6. Statistical Aspects of Quasi–Brittle Size Effect and Lifetime, with Consequences for Safety and Durability of Large Structures 161
Zdenìk P. BA?ANT, Jia–Liang LE and Qiang YU

6.1. Introduction 161

6.2. Type–I size effect derived from atomistic fracture mechanics 164

6.3. Size effect on structural lifetime 170

6.4. Consequences of ignoring Type–2 size effect 172

6.5. Conclusion 177

6.6. Acknowledgments 177

6.7. Bibliography 178

Chapter 7. Tertiary Creep: A Coupling Between Creep and Damage Application to the Case of Radioactive Waste Disposal 183
J.M. TORRENTI, T. DE LARRARD and F. BENBOUDJEMA

7.1. Introduction to tertiary creep 184

7.2. Modeling of tertiary creep using a damage model coupled to creep 185

7.3. Comparison with experimental results 189

7.4. Application to the case of nuclear waste disposal 190

7.5. Conclusions 197

7.6. Bibliography 198

Chapter 8. Study of Damages and Risks Related to Complex Industrial Facilities 203
Bruno GÉRARD, Bruno CAPRA, Gaël THILLARD and Christophe BAILLIS

8.1. Context 203

8.2. Introduction to risk management 204

8.3. Case study: computation process 206

8.4. Application 212

8.5. Conclusion 219

8.6. Acknowledgment 220

8.7. Bibliography 220

Chapter 9. Measuring Earthquake Damages to a High Strength Concrete Structure 221
Patrick PAULTRE, Benedikt WEBER, Sébastian MOUSSEAU and Jean PROULX

9.1. Introduction 221

9.2. Overview of the selected testing methods 222

9.3. Two–storey HPC building 223

9.4. Inducing damage pseudo–dynamic testing procedures 227

9.5. Evaluating damage forced vibration testing procedures 236

9.6. Damage detection analytical evaluation 239

9.7. Summary and conclusions 248

9.8. Bibliography 249

List of Authors 251

Index 253