COMPUTATION OF DYNAMIC STRESS INTENSITY FACTORS USING THE BOUNDARY-ELEMENT METHOD BASED ON LAPLACE TRANSFORM AND REGULARIZED BOUNDARY INTEGRAL-EQUATIONS

被引：4

作者：

TANAKA, M ^{[1
]}

NAKAMURA, M ^{[1
]}

AOKI, K ^{[1
]}

MATSUMOTO, T ^{[1
]}

机构：

[1] NIPPON GAISHI CO,MIZUHO KU,NAGOYA 467,JAPAN

来源：

JSME INTERNATIONAL JOURNAL SERIES A-MECHANICS AND MATERIAL ENGINEERING | 1993年 / 36卷 / 03期

关键词：

BOUNDARY ELEMENT METHOD; COMPUTATIONAL MECHANICS; STRESS INTENSITY FACTOR; STRUCTURAL ANALYSIS; ELASTODYNAMICS; LAPLACE TRANSFORM;

D O I：

10.1299/jsmea1993.36.3_252

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents a computational method of dynamic stress intensity factors (DSIF) in two-dimensional problems. In order to obtain accurate numerical results of DSIF, the boundary element method based on the Laplace transform and regularized boundary integral equations is applied to the computation of transient elastodynamic responses. A computer program is newly developed for two-dimensional elastodynamics. Numerical computation of DSIF is carried out for a rectangular plate with a center crack under impact tension. Accuracy of the results is investigated from the viewpoint of computational conditions such as the number of sampling points of the inverse Laplace transform and the number of boundary elements.

引用

页码：252 / 258

页数：7

共 20 条

[1]

Achenbach J. D., 1973, WAVE PROPAGATION ELA, P79

[2] ELASTODYNAMIC ANALYSIS OF CRACK BY FINITE-ELEMENT METHOD USING SINGULAR ELEMENT [J].