提出了一种实用有效的弹塑性损伤应力-应变本构方程与损伤演化方程。
The practical and effective expressions of stress strain constitutive relation and damage evolution for elastoplastic damage problems are proposed.
因此，使用弹塑性损伤接触面单元进行土体与结构物相互作用分析较为合理。
Therefore, the new interface element gives more reasonable predictions for soil-pile interaction analyses.
以复合体损伤理论为基础，建立了非饱和原状膨胀土的弹塑性损伤本构模型。
Based on the damage theory of composite substance, an elastoplastic damage constitutive model of unsaturated undisturbed expansive soil was developed.
针对混凝土多轴应力状态下各向异性损伤的特点，建立了各向异性弹塑性损伤模型。
In view of the anisotropic damage characteristics of concrete under multiaxial stress state, an anisotropic elastoplastic damage model is presented.
针对这些特点，综合考虑损伤和流变的影响，推导出基于西原体模型的黏弹塑性损伤本构模型。
The joints make intension of the rock mass decrease. According to these characteristics, a new visco-elastoplastic mechanical model is deduced.
基于各向同性弹塑性损伤假定和应变等效假设，采用重复拉伸的试验方法，得到了焊缝金属的损伤演化规律。
Based on the adoption of elastoplastic damage theory and effective strain assumption, weld metal coupons were tested under repeated pull and their damage evolution law was determined.
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.
利用有限元方法模拟时，韧性断裂准则既可以应用到完全耦合的弹塑性损伤模型的增量方法中，也可以应用到一步有限元逆算法中。
When adopting FEA to model, DFC could not only apply into incremental approach with a fully coupled elastic and plastic damage model, but to one step inverse approach.
对结构采用精细的弹塑性模型进行动力弹塑性分析，梁柱单元用塑性区模型，剪力墙用带分布钢筋的壳元+混凝土弹塑性损伤模型。
Based on the finite element analysis the outrigger, this paper presents an elastic plastic dynamic analysis to system by using the combined Member story model.
结构抗震性能的优劣，强烈地依赖其能量吸收能力和弹塑性变形能力，而这些能力的实现是以结构的损伤为代价的。
Aseismatic performance of frame structure intensively depends on it's energy absorbency and nonlinear distortion capability, and realization of these capability is based on the damage of structures.
该模型中考虑了弹塑性变形与损伤的耦合作用。
In the elastoplastic-damage model, the coupling between elastoplastic deformation and damage is considered.
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.
在计算结构构件损伤、构件滞回曲线等，首先应知道构件截面的内力与变形的协调关系。结构在地震作用下，已进入弹塑性变形范围。
When calculating the structural damage or hysteresis curve, the relationship between internal force and deformation should be known at first.
依广义正交法则，由状态势和耗散势函数推导出了耦合损伤的弹塑性切线模量。
According to the generalized normality rule, the tangent stiffness operator of elastoplastic material coupled with damage is derived from the state potential and the dissipative functions.
采用平面应力弹塑性有限元法研究了含有多部损伤的焊接接头裂纹尖端J积分的变化规律。
The J integral values in the vicinity of the crack tip in welded joints were numerically analyzed by using the plane stress elastic-plastic finite element method.
基于实验结果和理论分析，提出了一个考虑弹塑性应变幅比重不同的损伤公式，并与其它五种损伤公式寿命预测的结果做了比较。
On the basis of the experimental results and theoretical analysis, a damage formula about the difference of plastic strain and elastic strain is put forward.
本文提出了一个模拟有限应变下各向同性蠕变-弹塑性-损伤耦合本构行为的数值模型。
A numerical model to simulate isotropic, coupled creep elastoplastic damage constitutive behavior at finite strain is proposed in the present work.
本文提出了一个模拟有限应变下各向同性蠕变-弹塑性-损伤耦合本构行为的数值模型。
A numerical model to simulate isotropic, coupled creep elastoplastic damage constitutive behavior at finite strain is proposed in the present work.
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