Introduction to Hydrocodes (eBook)

Jonas Zukas (Autor)

eBook Download: PDF

2004 | 1. Auflage
326 Seiten
Elsevier Science (Verlag)
978-0-08-053501-2 (ISBN)

Infos

"A hydrocode refers to a computer program used for the study of the dynamic response of materials and structures to impulse (primary blast), impact (involving everything from car and aircraft collisions to impacts of space structures by assorted debris).

The understanding of hydrocodes requires knowledge of numerical methods in the code as well as a keen understanding of the physics of the problem being addressed. This can take many years to learn via codes. There are currently a number of titles addressing the physics of high pressure and high rate material but nothing introducing the novice to the fundamentals of this highly technical and complicated study. This title bridges the gap, bringing together the large body of literature, scattered through diverse journals, government and corporate reports and conference proceedings. As valuable as the text are the cited references and the combination will take years off the preparation time of future code users.

* Introduces complex physics essential for the understanding of hydrocodes
* Infused with over 30 years practical experience in the field
* Brings together a wide range of literature saving valuable research time"

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A hydrocode refers to a computer program used for the study of the dynamic response of materials and structures to impulse (primary blast), impact (involving everything from car and aircraft collisions to impacts of space structures by assorted debris). The understanding of hydrocodes requires knowledge of numerical methods in the code as well as a keen understanding of the physics of the problem being addressed. This can take many years to learn via codes. There are currently a number of titles addressing the physics of high pressure and high rate material but nothing introducing the novice to the fundamentals of this highly technical and complicated study. Introduction to Hydrocodes bridges the gap, bringing together the large body of literature, scattered through diverse journals, government and corporate reports and conference proceedings. As valuable as the text are the cited references and the combination will take years off the preparation time of future code users. - Introduces complex physics essential for the understanding of hydrocodes- Infused with over 30 years practical experience in the field- Brings together a wide range of literature saving valuable research time

Inhalt

Cover 1
Preface 5
Contents 9
Chapter 1 Dynamic Behavior of Materials and Structures 13
1.1 Introduction 13
1.2 Structural dynamics problems 16
1.3 Wave propagation problems 28
1.4 Mixed problems 37
1.5 Summary 38
References 39
Further reading 42
Chapter 2 Wave Propagation and Impact 45
2.1 Introduction 45
2.2 Wave propagation in rods and plates 48
2.3 Flies in the ointment 61
2.4 Bending waves 67
2.5 Wave reflections and interfaces 67
2.6 Dynamic fracture 78
2.7 Summary 82
References 84
Chapter 3 Shock Waves in Solids 87
3.1 Introduction 87
3.2 Uniaxial strain 88
3.3 Wave propagation 94
3.4 Conservation equations under shock loading:The Rankine-Hugoniot jump conditions 97
3.5 The Hugoniot 99
3.6 The equation of state 103
3.7 Summary 111
References 113
Chapter 4 Introduction to Numerical Modeling of Fast, Transient Phenomena 115
4.1 Introduction 115
4.2 Spatial discretization 117
4.3 Lagrangian mesh descriptions 135
4.4 Artificial viscosity 150
4.5 Time integration 153
4.6 Constitutive models 160
4.7 Problem areas 172
4.8 Summary 173
References 174
Chapter 5 How Does a Hydrocode Really Work? 181
5.1 Introduction 181
5.2 Pre-Processing 181
5.3 Number crunching 186
5.4 Once more, with feeling 210
References 210
Chapter 6 Alternatives to Purely Lagrangian Computations 213
6.1 Introduction 213
6.2 Euler codes 216
6.3 Arbitrary Lagrange–Euler methods (ALE) 235
6.4 Coupled Euler–Lagrange calculations 238
6.5 Smoothed-particle hydrodynamics (SPH) 247
References 258
Chapter 7 Experimental Methods for Material Behavior at High Strain Rates 263
7.1 Introduction 263
7.2 The split-Hopkinson pressure bar (Kolsky apparatus) 264
7.3 The Taylor cylinder 272
7.4 The expanding ring 277
7.5 Plate impact experiments 280
7.6 Pressure–shear experiments 284
7.7 Summary 287
References 287
Chapter 8 Practical Aspects of Numerical Simulations of Dynamic Events 291
8.1 Introduction 291
8.2 Difficulties 293
8.3 Idealization 295
8.4 The human factor 296
8.5 Problems related to computational meshes 297
8.6 Shortcuts 309
8.7 Summary 318
References 319
SUBJECT INDEX 323

Produkt-Details

• Erscheint lt. Verlag: 20.1.2004
• Sprache: englisch
• Themenwelt: Sachbuch/Ratgeber
• Themenwelt: Mathematik / Informatik ► Informatik ► Theorie / Studium
• Themenwelt: Mathematik / Informatik ► Mathematik ► Angewandte Mathematik
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Mechanik
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Strömungsmechanik
• Themenwelt: Technik ► Bauwesen
• Themenwelt: Technik ► Maschinenbau
• Themenwelt: Wirtschaft ► Betriebswirtschaft / Management ► Unternehmensführung / Management
• ISBN-10: 0-08-053501-1 / 0080535011
• ISBN-13: 978-0-08-053501-2 / 9780080535012