对封闭型分级单屈服面模型参数中的阶段改变参数和硬化参数的优化进行了研究。
In this paper, optimization of phase change parameter and hardening parameter of closed hierarchical single surface model is studied.
本文中建议了一个包含塑性体应变和偏应变两个硬化参数的封闭屈服面模型，可以同时应用于正常固结土和超固结土。
In this paper a double hardening model with two hardening parameters (i. e. plastic volumetric strain and shear strain) and a single smooth yield function has been proposed.
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。
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.
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。
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.
提要本文简述了岩土多重屈服面弹塑性模型的基本概念。
The basic conception on geotechnical multiply yield surface elastoplastic model is simply described.
研究了考虑结构性丧失和硬化的结构土屈服面函数、流动法则、硬化规律和弹性规律等，构建了一个结构土的弹塑性本构模型。
After researching of the yielding function, suitable flow rule and harden law and elastic law of structured soil, a structured soil constituted model has been proposed.
结合以塑性功为硬化参数的椭圆形屈服面，根据相关联流动法则及损伤理论推导出了黄土弹塑性损伤本构模型。
To join ellipse yield function, hardening parameter with plastic work, associated flow law and damage theory, the elastoplastic damage constitutive model of loess were derived.
更为主要的是该模型还可以用于解释泡沫压裂液的屈服应力和壁面滑移现象。
Especially, this model can also explain the yield stress and wall slip phenomena for foam fracturing fluid.
编制的软件有友好的界面并可用于主应力空间中各种工程材料屈服面和破坏面的模型及计算机辅助教学。
The present users-friendly software can be widely used in establishing the yield and failure surfaces for various engineering materials and the computer aided instruction (CAI).
该含微孔材料模型扩充了孙毅的材料模型，其屈服面由膨胀和运动平移组合而成。
The void - containing material model is based on Sun' s material model. Its yield surface consists of a combination of isotropic expansion and kinematic translation.
参照经典塑性力学的屈服面理论，引入了温度作用下应力空间中脆性岩石的损伤面模型，定性地讨论了荷载和温度影响下损伤面时的演化规律。
Giving an imitation of traditional plastic theory , a damage surface model on brittle rock about temperature in stress-space is introduced and the evolutionary law is discussed qualitatively.
进行采用非关联流动法则的多重屈服面本构模型隐式积分算法的实现。
An implicit integration algorithm of constitutive equations for multi-yield-surface model with non - associative flow rule is presented firstly.
多重势面模型直接从数学原理出发建立本构关系，避开了传统塑性理论中屈服面的概念，为研究岩土工程材料本构模型提供了新的思路。
The multi-potential surface model in strain space is more practical, since its parameters are easy to be determined, and the program based on the model is easy to be developed.
多重势面模型直接从数学原理出发建立本构关系，避开了传统塑性理论中屈服面的概念，为研究岩土工程材料本构模型提供了新的思路。
The multi-potential surface model in strain space is more practical, since its parameters are easy to be determined, and the program based on the model is easy to be developed.
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