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Dynamic Stress Intensity Factors of Three Collinear Cracks in an Orthotropic Plate Subjected to Time-Harmonic Disturbance

Published online by Cambridge University Press:  21 December 2015

S. Itou
S. Itou*
Affiliation:
Department of Mechanical EngineeringKanagawa UniversityYokohama, Japan
*
*Corresponding author (itous001@kanagawa-u.ac.jp)
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Abstract

Abstract-The dynamic stresses around three collinear cracks in an infinite orthotropic plate are solved. In this configuration, two equal cracks are situated symmetrically on either side of a central crack, and time-harmonic elastic waves impinge perpendicularly to the cracks. The problem is solved by superimposing two types of solutions. One solution is that for a crack in an infinite orthotropic plate, and the other is for two collinear cracks. The unknown coefficients in the superimposed solution are determined by applying the boundary conditions at the surfaces of the three cracks using the Schmidt method. The dynamic stress intensity factors are calculated numerically for an orthotropic plate that corresponds to the elastic properties of a boron-epoxy composite.

Keywords

Stress intensity factorThree collinear cracksTime-harmonic incident stress waves
Type
Research Article
Information
Journal of Mechanics , Volume 32 , Issue 5 , October 2016 , pp. 491 - 499
Copyright
Copyright © The Society of Theoretical and Applied Mechanics 2016 

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