在复杂应力状态下延性金属材料的塑性损伤依赖于加载路径。
Plastic damage of ductile metals under complex stress depends on loading path.
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.
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.
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.
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.
但这样的设计思想往往导致连梁在地震后存在塑性损伤破坏，修复困难且维修费用较大。
However, the yielding of coupling beams will induce damage in structures. Rehabilitation of coupling beams is difficult and the cost is large.
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.
从能量分析中给出了韧性金属材料空穴型损伤中塑性损伤的能耗散率，建立了一般的损伤演化规律；
The relation of the rate of plastic damage energy dissipation and the damage evolution is obtained in energy analysis for void damage material.
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.
通过考虑材料微观塑性损伤，定量研究了焊接接头中强度匹配、试件几何形状对接头抗延性裂纹扩展行为的影响。
The effects of strength mis-matching and specimen geometry on the resistance behavior to ductile crack growth for welded joint were conducted by 3-D FE analysis considering the micro-plastic damage.
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.
引入了地震损伤的整体演化指标，通过有限元方法利用材料塑性损伤模型模拟桥梁结构在地震激励下的非线性损伤演化过程。
The total evolution index was induced and the FEM of material plastic damage model was supplied to simulate the nonlinear damage evolution of bridge structure subjected to the earthquake excitation.
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.
本文以拉压应力损伤因子为内变量，采用混凝土塑性损伤模型，分析了坝体在地震荷载作用下的刚度退化以及在多维应力状态下拉应力引起的损伤破坏。
In this paper, the stiffness degradation and damage failure in concrete dams subjected to strong ground motion are simulated by plastic-damage model based on damage index variable.
所以尖端的军事科学机构——美国国防部高级研究计划局（DARPA）支持这个项目就不足为奇了，这个项目被称为加速损伤恢复的重组和可塑性（REPAIR）。
No surprise that military extreme science agency Darpa is behind the project, which is called REPAIR, or Reorganization and Plasticity to Accelerate Injury Recovery.
试验结果表明，焊缝金属具有比较好的塑性变形能力，焊缝的损伤值与材料的累积塑性应变呈线性关系。
The experimental results showed that weld metal had enough plastic deformation capacity, and its damage value was linear with the cumulative plastic strain.
酒精相关的器官损伤机制——阐明酒精导致器官损伤的分子途径，器官可塑性和器官康复的机制。
Mechanisms of alcohol-related organ damage - research that elucidates molecular pathways through which alcohol produces organ damage, as well as mechanisms of organ plasticity and organ recovery.
再结晶温度以上，材料内部缺陷损伤与修复的作用效果对塑性变形能力具有重要影响。
The effect of damage and fault healing has the great influence on the plasticity in materials over the recrystallization temperature.
从而建立了塑性、蠕变和疲劳损伤现象的本构方程。
Then, constitutive equations are written for plastic, creep and fatigue damage phenomena.
基于金属板材塑性变形的损伤本构关系，运用有限元数值法分析了金属薄板的面内成形过程。
The sheet metal forming processes under in-plane deformation were simulated by using finite element method based on a coupled elastoplasticity with damage constitutive laws.
本文研究了单轴静拉伸条件下微孔损伤对塑性失稳的影响。
The effect of micro-damage on the plastic instability in uniaxial tensile testing has been studied in this paper.
提出了一种新的损伤塑性本构模型，强调了应力三轴比对塑性屈服的影响。
A plastic constitutive damage model was proposed with special concerns being put on simulating the stress triaxiality-dependent hardening phenomena.
海马神经元损伤是神经突触可塑性调节中重要的一个环节，在抑郁症发病机制的研究中占有重要地位。
The damage of hippocampus neuron is the key part in plasticity regulation of synapse and play a critical role in the mechanism of depression.
目的了解环境刺激对未成熟脑可塑性的影响及其在脑损伤后功能康复中的意义。
Objective To estimate environmental influence on immature brain plasticity, and its role in functional outcome of brain damage in rats.
说明脑源性神经营养因子既参与脊髓的正常生理功能，也与其损伤后的可塑性有关。
Therefore, BDNF may be involved in the normal physiological function and the plasticity of spinal cord after damage.
研究高位脊髓损伤慢性期心血管系统的可塑性变化，探讨发生自主神经反射异常的机理。
To explore the mechanism of autonomic dysreflexia by making investigation of the plastic change of cardiovascular system in the chronic stage of high level spinal cord injured rats.
电针可以通过提高BDNF在缺血区周围皮层的表达，保护缺血性脑损伤，并可能与大脑可塑性的形成有一定的关系。
Ea has a protective effect on ischemic brain injury by increasing the BDNF expression in cortex around the ischemic focus.
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.
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