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两相介质大变形动力问题的数值模拟

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2007-12-25

Journal: 工程力学

Included Journals: CSCD、ISTIC、PKU、EI、Scopus

Volume: 24

Issue: 12

Page Number: 47-52

ISSN: 1000-4750

Key Words: 土力学;数值模拟;两相介质;大变形;饱和土

Abstract: 基于Biot理论和u-p列式,推导了两相介质动力问题的控制方程.固相的位移和液相孔隙压力是两个基本的未知量.采用更新的Lagrangian方法和Jaumann应力对这一耦合问题进行了大变形分析.用建议的方法,对一饱和土柱在静力和动力荷载作用下的反应进行了数值模拟,并对大、小变形理论下的计算结果进行了对比.

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