Damage Mechanical Analysis of Spherical Cavity Expansion

Guo Hui Wu; Kun Wang; Li Qiang Tang

doi:10.4028/www.scientific.net/KEM.417-418.905

Paper Titles

Seismic Damage Analysis of the Teaching Buildings in Leigu Town in the Wenchuan Earthquake
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Yield Criteria for Pressure-Sensitive Materials Based on Meso-Mechanical Analysis
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Elastic-Plastic Analysis of the Interaction between Ice and Offshore Structures
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The Ability of Current Models for Fatigue Life Prediction of Shot Peened Components
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Damage Mechanical Analysis of Spherical Cavity Expansion
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Study on Safety Evaluation of an Aged Steel Truss Bridge with Cracking Members
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Mathematical Modelling of Service Life Prediction as a Part of the Maintenance Process
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Fracture Properties of Epoxy Asphalt Mixture
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Stochastic Damage Constitutive Model for Concrete Subjected to Uniaxial Tension Stress
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Damage Mechanical Analysis of Spherical Cavity Expansion

Abstract:

In this paper, the method of continuum damage mechanics is used to construct the damage constitutive equations for the material, and governing equations are obtained based on the assumption of spherical symmetry. Then the stress value is taken as basic unknown parameter to solve these equations, the distribution of materials damage field was also obtained. Finally, the influence of different damage parameters on average distribution is discussed. Thus the paper lays a necessary foundation for research on materials damage evolution law.