Mechanical Engineering Journal
Online ISSN : 2187-9745
ISSN-L : 2187-9745
Solid Mechanics and Materials Engineering
Stress intensity factor of a penny-shaped crack with small-disturbed crack front line
Masayuki ARAI
Author information

2018 Volume 5 Issue 6 Pages 18-00244


In this paper, the stress intensity factor K  for the crack front line αε (1 + cosmθ ) , which is slightly perturbed from a complete circular line with a radius of α, is solved. The mathematical procedure chosen in this study is based upon the perturbation technique developed by Rice for solving the elastic problem of a crack whose front slightly deviates from some reference geometry. It is shown that the solution obtained for the stress intensity factor matches the results of a three-dimensional finite element analysis.

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© 2018 The Japan Society of Mechanical Engineers
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