Description

Dynamic fracture in solids has attracted much attention for over a century from engineers as well as physicists due both to its technological interest and to inherent scientific curiosity. Rapidly applied loads are encountered in a number of technical applications. In some cases such loads might be applied deliberately, as for example in problems of blasting, mining, and comminution or fragmentation; in other cases, such dynamic loads might arise from accidental conditions. Regardless of the origin of the rapid loading, it is necessary to understand the mechanisms and mechanics of fracture under dynamic loading conditions in order to design suitable procedures for assessing the susceptibility to fracture. Quite apart from its repercussions in the area of structural integrity, fundamental scientific curiosity has continued to play a large role in engendering interest in dynamic fracture problems

Key Features

* In-depth coverage of the mechanics, experimental methods, practical applications * Summary of material response of different materials * Discussion of unresolved issues in dynamic fracture

Readership

Research and practising engineers in academia and industry in mechanical, structural and civil engineering

Table of Contents

Contents Preface 1.Introduction 1.1 Pressurized Thermal Shock in Nuclear Containment Vessels 1.2 Boiler and Pipeline Burst Problems 1.3 Dynamic Fracture in Airplane Structures 1.4 Notched Bar Impact Testing of Metallic Materials 2. Linear Elastodynamics 2.1 Fundamental Boundary-Initial Value Problems in Elastodynamics 2.2 Bulk Waves 2.3 Lame´ Solution 2.4 Plane Waves 2.5 Propagation of Discontinuities: Wavefronts and Rays 2.6 Two-Dimensional Problems in Elastodynamics 2.6.1 Anti-Plane Shear 2.6.2 Plane Strain 2.6.3 Plane Stress 2.7 Surface Waves 2.8 Half-Space Green’s Functions 2.9 Lamb’s Problem 3. Dynamic Crack Tip Fields 3.1 Dynamically Loaded Cracks 3.2 Asymptotic Analysis of Crack Tip Fields 3.2.1 Anti-Plane Shear 3.2.2 In-Plane Symmetric Deformation 3.2.3 In-Plane Antisymmetric Deformation 3.3 Asymptotic Analysis for Nonsteady Crack Growth 3.4 Intersonic Crack Growth 4. Determination of Dynamic Stress Intensity Factors 4.1 Analysis of Stationary Cracks Under Dynamic Loading 4.1.1 Semi-Infinite Crack Under Uniform Loading 4.1.2 Semi-Infinite Crack Under a Point Load 4.2 Analysis of Moving Crack Problems 4.2.1 The Yoffe Problem 4.2.2 Dynamic Stress Intensity Factors for Moving Cracks 5. Energy Balance and Fracture Criteria 5.1 Energy Balance Equation 5.2 Dynamic Failure Criterion 5.3 Dynamic Crack Initiation Toughness 5.4 Dynamic Crack Growth Toughness 5.5 Dynamic Crack Arrest Toughness 5.6 Application of Dynamic Failure Criteria 6. Methods of Generating Dynamic Loading 6.1 Static Loading of Cracks 6.2 Drop-Weight Tower and Instrumented Impact Testing 6.3 Projectile Impact 6.4 Hopkinson Bar Impact Test 6.5 Explosives 6.6 Electromagnetic Loading 7. M

Details

No. of pages:
264
Language:
English
Copyright:
© 2004
Published:
Imprint:
Elsevier Science
Print ISBN:
9780080443522
Electronic ISBN:
9780080472553