NUMERICAL SIMULATION OF ELASTIC WAVE PROPAGATION IN ANISOTROPIC MEDIA

被引：0
|
作者：
Zhang Jianfeng Liu Tielin (State Key Laboratory of Structure Analysis of Industrial Equipment
机构：
来源：
Acta Mechanica Solida Sinica | 2000年 / 13卷 / 01期
基金：
中国国家自然科学基金;
关键词：
numerical modeling; anisotropy; finite difference; grid method;
D O I：
暂无
中图分类号：
TB125 [工程塑性力学、工程弹性力学];
学科分类号：
0801 ; 080104 ;
摘要：
A new numerical simulation algorittan is presented for the elastic wave propagation in hetero-geneous anisotropic media.We make discretization of the computational domain by using triangular and qua-drangular grids.The scheme is based on integral equilibrium at each node to simulate the elastic wave propa-gation in heterogeneous anisotropic media.The scheme is very flexible in dealing with arbitrary surface to-pography,inner openings,hqnid-solid boundaries and irregular interfaces.Moreover,the free-surface condi-tion of complex geometrical boundaries can be,satisfied naturally.This work is an extension of the grid meth-od for the elastic wave propagation in heterogeneous isotropic media,and a quadrangular grid with low com-putational cost is also introduced.
引用
收藏
页码：50 / 59
页数：10
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