弹性动力学的等效内含物法和两椭球异质体的散射场
On the Method of Equivalent Inclusions in Elastodynamics and the Scattering Fields of Two Ellipsoidal Inhomogeneities
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摘要: 用Gurtin变分原理推导了一般线弹性动力学的多异质体问题的等效性方程.用“等效内含物法”求得两椭球异质体对入射弹性波的散射场和散射横截面的近似表达式,并给出了计算实例.Abstract: Gurtin's variational principle is used to derive the equivalence equalions for general linear elastodynamical problems of multiple inhomogeneities. An approximate expression on scattering field of two ellipsoidal inhomogeneities is obtained by the method of equivalent inclusions. And some numerical examples are presented.
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