水利学报Issue(3)：312-318,7.
横观各向同性饱和两相介质弹塑性波动问题研究
Wave propagation in transversely isotropic elasto-plastic fluid-saturated porous media
摘要
Abstract
In this paper,an elasto-plastic dynamic constitutive model for transversely isotropic fluid-saturat⁃ed porous media is constructed based on the SMP failure criterion,and the time-domain explicit finite ele⁃ment method for the wave propagation in transversely isotropic elasto-plastic fluid-saturated porous media is put forward. The wave propagation in transversely isotropic elasto-plastic fluid-saturated porous media is in⁃vestigated based on the dynamic constitutive model and the time-domain explicit finite element method giv⁃en out in this paper,and calculating results are compared with those of elastic wave propagation. Calculat⁃ing results show that the dynamic response of transversely isotropic elasto-plastic fluid-saturated porous me⁃dia is remarkably different from that of elastic porous media,that is the peak value of elasto-plastic dynam⁃ic response has remarkable increase relative to that of elastic dynamic response,and the figures of time his⁃tory are different significantly from each other for elasto-plastic dynamic response and elastic dynamic re⁃sponse of transversely isotropic fluid-saturated porous media. In the meanwhile, numerical calculations car⁃ried out in this paper indicate that the time-domain explicit finite element method is effective for the wave propagation in transversely isotropic elasto-plastic fluid-saturated porous media.关键词
横观各向同性/饱和两相介质/波动/弹塑性/时域显式有限元法/SMP破坏准则Key words
transversely isotropic/fluid-saturated porous media/wave propagation/elasto-plastic/time-do-main explicit finite element method/SMP failure criterion分类
建筑与水利引用本文复制引用
李亮,杜修力,翟威..横观各向同性饱和两相介质弹塑性波动问题研究[J].水利学报,2013,(3):312-318,7.基金项目
国家自然科学基金面上项目(51178011) （51178011）
国家重点基础研究发展计划973计划项目(2011CB013602) （2011CB013602）
北京市科技新星计划(A类)项目(2008A016) （A类）
2011年度北京市属高校人才强教深化计划中青年骨干人才项目(PHR20110808) （PHR20110808）
北京工业大学城市与工程安全减灾教育部重点实验室开放课题资助项目 （）
