摘要
基于Biot双相各向异性介质理论和动态问题的哈密顿原理,推导出任意双相各向导性介质中弹性波传播的有限元方程,并给出双相各向异性介质中弹性波有限元方程的数值解法。最后进行有限元法的数值模拟,对双相各向异性介质中弹性波传播特征进行了模拟与分析。
Based on Biot theory of two-phase anisotropic media and Hamilton theory about dynamic problem, finite element equations of elastic wave propagation in two-phase anisotropic media are derived in this paper. Numerical solution of finite element equations is given. Finally, properties of elastic wave propagation are observed and analyzed through FEM modeling.
出处
《地震学报》
CSCD
北大核心
2003年第2期154-162,共9页
Acta Seismologica Sinica
基金
国家863计划(2001AA602011-3)和国家'十五'科技攻关计划(2001BA605A-12)联合资助.
关键词
双相
各向异性介质
弹性波传播
有限元方程
数值模拟
two-phase
anisotropic media
elastic wave propagation
finite element equations
numerical simulation
