Analytical Fracture Mechanics

Other | October 1, 1995

byUnger, David J., David J. Unger

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Fracture mechanics is an interdisciplinary subject that predicts the conditions under which materials fail due to crack growth. It spans several fields of interest including: mechanical, civil, and materials engineering, applied mathematics and physics. This book provides detailed coverage of the subject not commonly found in other texts.
Analytical Fracture Mechanics contains the first analytical continuation of both stress and displacement across a finite-dimensional, elastic-plastic boundary of a mode I crack problem. The book provides a transition model of crack tip plasticitythat has important implications regarding failure bounds for the mode III fracture assessment diagram. It also presents an analytical solution to a true moving boundary value problem for environmentally assisted crack growth and a decohesion model of hydrogen embrittlement that exhibits all three stages of steady-state crack propagation.
The text will be of great interest to professors, graduate students, and other researchers of theoretical and applied mechanics, and engineering mechanics and science.
  • Presents the only analytical proven solution technique amenable to the second-order nonlinear partial differential equation governing a mode I elastoplastic crack problem
  • Places emphasis on the near crack tip partial differential equations governing plasticity and process zone theory in environmental cracking phenomena
  • Provides fundamental solutions of linear elastic fracture mechanics
  • Explains how transport-controlled stage II environmental crack growth can be mapped onto the classic Stefan problem
  • Predicts failure curves on fracture assessment diagram for mode III crack problem as transition occurs from plastic strip to finite-dimensional plastic zone
  • Gives a summary of pertinent equations of linear elasticity and plasticity

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From the Publisher

Fracture mechanics is an interdisciplinary subject that predicts the conditions under which materials fail due to crack growth. It spans several fields of interest including: mechanical, civil, and materials engineering, applied mathematics and physics. This book provides detailed coverage of the subject not commonly found in other tex...

Format:OtherDimensions:300 pages, 1 × 1 × 1 inPublished:October 1, 1995Publisher:Academic PressLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0080527191

ISBN - 13:9780080527192

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Table of Contents

Introduction.Equations of Continuum Mechanics. Equations of Elasticity. Equations of Plasticity. Plane Problems of Elasticity Theory. Linear Elastic Fracture Mechanics. Strip Models of Crack Tip Plasticity. Exact Elastoplastic Solutions for Mode III. Plane Strain Problems Involving Plastic Theory. Plane Stress Problems Involving Plastic Material. Numerical Solutions of the Mode I Elastoplastic Problem. Miscellaneous Mathematical Topics.On The Continuance of an Analytical Solution across the Elastic–Plastic Boundary of a Mode I Fracture Mechanics Problem:Elastoplastic Stress Analyses for Modes I and III. Developable Surfaces. Strain Rates for Plane Stress under the Tresca Yield Condition. Mode I Displacements. Speculations Concerning an Analytical Mode I Elastoplastic Solution.Plastic Zone Transitions:A Finite-Width Dugdale Zone Model for Mode III. An Energy-Dissipation Analysis for the Transition Model. Effective Crack Length for the Transition Model. Fracture Assessment Diagrams.Environmental Cracking:Hydrogen-Assisted Cracking. Analysis for Impending Hydrogen-Assisted Crack Propagation. A Modified Stefan Problem Related to Stress Corrosion Cracking.Small-Scale Yielding versus Exact Linear Elastic Solutions:The Fundamental Modes of Fracture. Elastic–Plastic Loci as Predicted by Linear Elastic Fracture Mechanics. Inverse Cassinian Oval Coordinates for Mode III. References. Subject Index.
Introduction. On The Continuance of an Analytical Solution Across the Elastic–Plastic Boundary of a Mode I Fracture Mechanics Problem. Plastic Zone Transitions. Environmental Cracking. Small-Scale Yielding versus Exact Linear Elastic Solutions. Reference. Subject Index.