The user material subroutine UMAT provided by the general software ABAQUS was used for programming for Shenzhujiang s double-yield surface model of earth rockfill materials.
利用ABAQUS提供的用户材料子程序UMAT的二次开发平台开发土石料的沈珠江双屈服面模型，并以一面板堆石坝为例，结合ABAQUS的“单元增加/去除”技术进行了坝体施工和水库蓄水的仿真分析。
Deformation of preloaded soft ground was calculated with the Yin's double yield surface model, the viscoelastic-viscoplastic model and the viscoelastic-viscoplastic damage model respectively.
结合堆载预压加固软基实例，分别采用殷宗泽双屈服面模型、粘弹-粘塑性和粘弹-粘塑性损伤模型进行有限元分析。
The basic conception on geotechnical multiply yield surface elastoplastic model is simply described.
提要本文简述了岩土多重屈服面弹塑性模型的基本概念。
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