WIT Press


Two Short-cut Determination Methods To Calculate Stress Intensity Factor

Price

Free (open access)

Paper DOI

10.2495/BT990131

Volume

23

Pages

10

Published

1999

Size

591 kb

Author(s)

W. Fujisaki

Abstract

In this paper, two short-cut methods are described to obtain a more accurate stress intensity factor by decreasing the error due to high order terms in series expansions. One is a V-line stress extrapolation method and the other is a V-line displacement extrapolation method. The methods are based on choosing proper angles to minimize the effect of high order terms. These two methods need no superior technique and just use the data on double lines, and are available even by a simplest BEM or FEM code. By using the two methods, an accurate SIF is obtained even in a case that the conventional stress extrapolation method could not be applied. The V-line methods are especially suitable for BEM because stresses or displacements at any internal

Keywords