WIT Press


Application Of Modified Distance Extrapolation Method For Calculation Of Stress Intensity Factors Using BEM

Price

Free (open access)

Paper DOI

10.2495/BE970281

Volume

19

Pages

10

Published

1997

Size

524 kb

Author(s)

W. Fujisaki and M.H. Aliabadi

Abstract

In this paper, a new method is presented for the evaluation of the stress intensity factors. The method is based on a modified distance extrapolation method. It is shown that by using the modified ex- trapolation technique accurate values of the stress intensity factors can be obtained from the stresses ahead of the crack tip. 1 Introduction Stress intensity factors for cracked bodies have been evaluated using many techniques. One of the most popular methods is the so-called extrapola- tion technique[1]. In this technique stress intensity factors are obtained by equating the boundary element solutions to the theoretical expressions for displacements or stresses near the crack tip. As, the stress fields are singular O(

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