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Fracture Mechanics of Electromagnetic Materials Nonlinear Field Theory and Applications

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ISBN-10: 184816663X

ISBN-13: 9781848166639

Edition: 2012

Authors: XiaoHong Chen, Y. W. Mai

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Description:

This volume provides a comprehensive overview of fracture mechanics of conservative and dissipative materials, as well as a general formulation of nonlinear field theory of fracture mechanics and a rigorous treatment of dynamic crack problems involving coupled magnetic, electric, thermal and mechanical field quantities.
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Book details

Copyright year: 2012
Publisher: Imperial College Press
Publication date: 8/26/2012
Binding: Hardcover
Pages: 300
Size: 6.00" wide x 9.25" long x 1.00" tall
Weight: 1.320
Language: English

Foreword
Preface
List of Tables
List of Figures
Fundamentals of Fracture Mechanics
Historical Perspective
Stress Intensity Factors (SIF)
Energy Release Rate (ERR)
J-Integral
Dynamic Fracture
Viscoelastic Fracture
Essential Work of Fracture (EWF)
Configuration Force (Material Force) Method
Cohesive Zone and Virtual Internal Bond Models
Elements of Electrodynamics of Continua
Notations
Eulerian and Lagrangian descriptions
Electromagnetic field
Electromagnetic body force and couple
Electromagnetic stress tensor and momentum vector
Electromagnetic power
Poynting theorem
Maxwell Equations
Balance Equations of Mass, Momentum, Moment of Momentum, and Energy
Constitutive Relations
Linearized Theory
Introduction to Thermoviscoelasticity
Thermoelasticity
Viscoelasticity
Coupled Theory of Thermoviscoelasticity
Fundamental principles of thermodynamics
Formulation based on Helmholtz free energy functional
Formulation based on Gibbs free energy functional
Thermoviscoelastic Boundary-Initial Value Problems
Overview on Fracture of Electromagnetic Materials
Introduction
Basic Field Equations
General Solution Procedures
Debates on Crack-Face Boundary Conditions
Fracture Criteria
Field intensity factors
Path-independent integral
Mechanical strain energy release rate
Global and local energy release rates
Experimental Observations
Indentation test
Compact tension test
Bending test
Nonlinear Studies
Electrostriction/magnetostriction
Polarization/magnetization saturation
Domain switching
Domain wall motion
Status and Prospects
Crack Driving Force in Electro-Thermo-Elastodynamic Fracture
Introduction
Fundamental Principles of Thermodynamics
Energy Flux and Dynamic Contour Integral
Dynamic Energy Release Rate Serving as Crack Driving Force
Configuration Force and Energy-Momentum Tensor
Coupled Electromechanical Jump/Boundary Conditions
Asymptotic Near-Tip Field Solution
Remarks
Dynamic Fracture Mechanics of Magneto-Electro-Thermo-Elastic Solids
Introduction
Thermodynamic Formulation of Fully Coupled Dynamic Framework
Field equations and jump conditions
Dynamic energy release rate
Invariant integral
Stroh-Type Formalism for Steady-State Crack Propagation under Coupled Magneto-Electro-Mechanical Jump/Boundary Conditions
Generalized plane crack problem
Steady-state solution
Path-independent integral for steady crack growth
Magneto-Electro-Elastostatic Crack Problem as a Special Case
Summary
Dynamic Crack Propagation in Magneto-Electro-Elastic Solids
Introduction
Shear Horizontal Surface Waves
Transient Mode-III Crack Growth Problem
Integral Transform, Wiener-Hopf Technique, and Cagniard-de Hoop Method
Fundamental Solutions for Traction Loading Only
Fundamental Solutions for Mixed Loads
Evaluation of Dynamic Energy Release Rate
Influence of Shear Horizontal Surface Wave Speed and Crack Tip Velocity
Fracture of Functionally Graded Materials
Introduction
Formulation of Boundary-Initial Value Problems
Basic Solution Techniques
Fracture Characterizing Parameters
Field intensity factors
Dynamic energy release rate
Path-domain independent integral
Remarks
Magneto-Thermo-Viscoelastic Deformation and Fracture
Introduction
Local Balance Equations for Magnetic, Thermal, and Mechanical Field Quantities
Free Energy and Entropy Production Inequality for Memory-Dependent Magnetosensitive Materials
Coupled Magneto-Thermo-Viscoelastic Constitutive Relations
Generalized J-Integral in Nonlinear Magneto-Thermo-Viscoelastic Fracture
Generalized Plane Crack Problem and Revisit of Mode-III Fracture of a Magnetostrictive Solid in a Bias Magnetic Field
Electro-Thermo-Viscoelastic Deformation and Fracture
Introduction
Local Balance Equations for Electric, Thermal, and Mechanical Field Quantities
Free Energy and Entropy Production Inequality for Memory-Dependent Electrosensitive Materials
Coupled Electro-Thermo-Viscoelastic Constitutive Relations
Generalized J-Integral in Nonlinear Electro-Thermo-Viscoelastic Fracture
Analogy between Nonlinear Magneto- and Electro-Thermo-Viscoelastic Constitutive and Fracture Theories
Reduction to Dorfmann-Ogden Nonlinear Magneto- and Electro-elasticity
Nonlinear Field Theory of Fracture Mechanics for Paramagnetic and Ferromagnetic Materials
Introduction
Global Energy Balance Equation and Non-Negative Global Dissipation Requirement
Hamiltonian Density and Thermodynamically Admissible Conditions
Generalized functional thermodynamics
Generalized state-variable thermodynamics
Thermodynamically Consistent Time-Dependent Fracture Criterion
Generalized Energy Release Rate versus Bulk Dissipation Rate
Local Generalized J -Integral versus Global Generalized J -Integral
Essential Work of Fracture versus Nonessential Work of Fracture
Nonlinear Field Theory of Fracture Mechanics for Piezoelectric and Ferroelectric Materials
Introduction
Nonlinear Field Equations
Balance equations
Constitutive laws
Thermodynamically Consistent Time-Dependent Fracture Criterion
Correlation with Conventional Fracture Mechanics Approaches
Applications to Fracture Characterization
Introduction
Energy Release Rate Method and its Generalization
J-R Curve Method and its Generalization
Essential Work of Fracture Method and its Extension
Closure
Bibliography
Index