Paper Title:

Micromechanical Dynamic Influence of Rigid Disk-Shaped Inclusion on Neighboring Crack in 3D Elastic Matrix

Periodical Materials Science Forum (Volumes 567 - 568)
Main Theme Materials Structure & Micromechanics of Fracture V
Edited by Pavel Ε andera
Pages 133-136
DOI 10.4028/www.scientific.net/MSF.567-568.133
Citation Victor Mykhas'kiv et al., 2007, Materials Science Forum, 567-568, 133
Online since December, 2007
Authors Victor Mykhas'kiv, O. Khay, Jan Sladek, Vladimir Sladek, Chuan Zeng Zhang
Keywords 3D Elastic Matrix, Boundary Integral Equation Method, Dynamic Crack Opening Displacement, Dynamic Stress Intensity Factor (DSIF), Time Harmonic Crack Inclusion Interaction
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Abstract

A 3D time-harmonic problem for an infinite elastic matrix with an arbitrarily located interacting rigid disk-shaped inclusion and a penny-shaped crack is analyzed by the boundary integral equation method. Perfect bonding between the matrix and the moving inclusion is assumed. The crack faces are subjected to time-harmonic loading. The boundary integral equations (BIEs) obtained are solved numerically by the implementation of regularization and discretization procedures. Numerical calculations are carried out for a crack under tensile loading of constant amplitude, where an interacting inclusion is perpendicular to the crack and has the same radius. Both the normal crack-opening-displacement and the mode-I stress intensity factor are investigated for different wave numbers and distances between the crack and the inclusion.