Open Access

ARTICLE

Dynamic Stress Intensity Factors of Collinear Cracks under a Uniform Tensile Stress Wave

K.-C. Wu², S.-M. Huang², S.-H. Chen³
1 This paper is in honor of Professor Wen-Hwa Chen, on the occasion of his receiving the ICCES Lifetime Achievement Medal at ICCES13 in Seattle, in May 2013.
2 National Taiwan University, Taipei, Taiwan.
3 National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan.

Computer Modeling in Engineering & Sciences 2013, 93(2), 133-148. https://doi.org/10.3970/cmes.2013.093.133

Abstract

An analysis is presented for an array of collinear cracks subject to a uniform tensile stress wave in an isotropic material. An integral equation for the problem is established by modeling the cracks as distributions of dislocations. The integral equation is solved numerically in the Laplace transform domain first and the solution is then inverted to the time domain to calculate the dynamic stress intensity factors. Numerical examples of one, two, or three collinear cracks are given. The results of one or two cracks are checked to agree closely with the existing results.

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Keywords

collinear cracks, stress wave, stress intensity factor.

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