三维弹性力学边界元中域积分的计算

THE CALCULATION OF VOLUME INTEGRALS IN BEM OF THREE DIMENSIONAL ELASTICITY

对于形如ａｉ（ｙ，ｚ）ｘｉ、ｂｉ（ｘ，ｚ）ｙｉ和ｃｉ（ｘ，ｙ）ｚｉ的载荷给出了域积分转化为边界积分的正确公式。

In this paper, for such loadings as a i(y,z)x i、b i(x,z)y i and c i(x,y)z i , the exact formulae of transforming volume integrals to boundary integrals are given. For complicated loadings the volume integrals are approximately transformed to boundary integrals by using Taylors expansion.