摘要
建立了弹 粘塑性比奥固结有限元模型,采用8结点等参单元耦合4结点等参单元的复合单元形式来模拟土体的变形与土体中孔隙水压力消散的耦合效应;并考虑了固结计算时步与粘塑性时步的耦合,以保证程序计算的稳定性与精度。通过程序对实例的计算分析,验证了该程序的可靠性。
A elasto?viscoplastic finite element model based on Biots consolidation theory is presented; compound elements consisted of 8?node elements coupled with 4?node elements are used to simulate the coupled effect of soft grounds deformation and pore pressure dissipation. The coupling of consolidation time step and viscoplasticity time step can guarantee the programs stability and precision. The reliabilily of program is confirmed by analying practical examples.
出处
《长江科学院院报》
CSCD
北大核心
2004年第1期18-21,25,共5页
Journal of Changjiang River Scientific Research Institute
关键词
弹-粘塑性
固结
有限元分析
耦合
elasto-viscoplastic
consolidation
finite element analysis
coupling
