喷丸过程和随后的接触疲劳滚压过程同属在赫兹应力作用下的循环弹塑性应变过程。
Both shot peening and contact rolling belong to the cyclic elastic-plastic deformation process under the action of Hertz stress.
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.
热弹塑性有限元法和固有应变法是焊接变形预测的两种主要数值方法。
Thermal-elastic-plastic and inherent strains FE methods are two means, which have been applied to the prediction of welding deformation.
利用土体的塑性流动理论，提出了用于描述饱和砂土在单调荷载作用下的应力—应变反应性质的弹塑性本构模型。
Based on the plastic flow theory of soils, an elastoplastic constitutive model for describing the stress-strain behavior of the saturated sands under the action of monotonic loading is developed.
结合压缩应力应变关系可进一步确定弹塑性失稳点的位置，从而导出压缩强度的理论公式。
Further determination of the elastoplastic instability point is facilitated by the compressional stress strain relation, which then gives rise of the final formula of the compressive strength.
在经典弹-塑性理论的屈服函数中引入应变梯度及考虑应变率效应的函数。
The second shear strain gradient and the function reflecting the effect of strain rate are introduced into the yield function of classical elastoplastic theory.
长江三峡花岗岩测试表明，其应力应变全过程曲线呈现典型的弹脆塑性。
The full process testing curves of stress strain for the granite of the TGP permanent lock present typical elastic brittle plastic properties.
通过引入沙漏应变和沙漏应力的方法来控制弹塑性大变形中的沙漏现象。
It is shown that the hourglass modes can be controlled in the computation of large elastic plastic deformation by introducing the hourglass strains and the corresponding stresses.
采用弹粘塑性力学模型，对扩展裂纹尖端的应力和应变场进行了渐近分析。
An elastic_viscoplastic model is adopted to investigate asymptotically the stress and strain fields at a propagating crack_tip.
首先在小弹塑性范围内用应变的奇次四项式相当精确地拟合一般硬化材料的拉伸曲线；
This paper pressents a polynomial with four odd terms to fit the stress-strain relation for the materials with arbitrary hardening behaviour in the region of small elastoplastic deformation.
获得了应变集中系数和弹塑性边界区随载荷变化的规律；
The variation of the strain concentration factors and the yield boundaries with loading levels were determined.
这种方法是以一种假设为基础的，即可以在平面应力条件下仿照缩颈模式和在平面应变条件下仿照剪切定位，材料是用弹、粘塑性物质构成的仿制品。
The approach is based on the assumption that necking mode can be modeled under plane stress conditions and shear localization can be modeled under plane strain conditions.
其次，指出这种高密度的冰碛土的应力应变特性属于非线性弹、塑性性质。
Next, it was indicated that the stress-strain characteristics of the high density till were nonlinear elastoplastic.
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.
弹塑性边界元法中初应力(或初应变)奇异体积分的计算一直是一个较为困难、但又是非常重要的问题。
The calculation of the initial stress (or initial strain) singular integrals in elastoplastic boundary element method is a difficult, but an important problem.
计算结果表明，在确定土体应力—应变关系时，不仅应该考虑土的弹塑性，还应该考虑到土的各向异性，这样才能符合土的实际情况。
The calculated results show that the model considering both elastoplastic and anisotropic characteristics in determining soil stress strain relations agrees quite closely with the actual state.
本文用弹塑性大应变问题的等参数有限元分析程序(LEPS程序)，对平板和圆棒试件的颈缩作了较全面的分析。
An isoparametric finite element program of large elastic-plastic strain (LEPS) is used to analyse the necking of a cylindrical bar and a plate specimen under uniaxial tension.
本文根据土的室内蠕变试验提出了一项分析土的弹粘塑性应力—应变关系的方法。
Based on laboratory creep tests of soils, the method for analyzing the elastic-viscoplastic stress-strain relations are presented in this paper.
研究结果表明，弹塑性有限元分析法预测的寿命偏低，由残余应力可以较准确地确定最大应力应变循环。
The result shows that predicting life by elasticity-plasticity finite element analysis is low and the maximal stress-strain cycle can be calculated accurately by the residual stress method.
在材料应力-应变关系的层次上，进行了高层钢筋混凝土结构的弹塑性时程分析。
Based on the stress-strain relation of the materials, study on nonlinear time-history analysis for tall reinforced concrete structure is carried out.
按剪滞理论和应变硬化规律研究微复合材料的弹塑性变形和应力状态。
The elastic plastic deformation and stresses of the micro composite are studied according to the shear lag theory and strain-hardening law.
本文从非线性粘弹性物质的多重积分型本构方程出发，引入塑性应变，推导了粘弹塑性物质的微分型本构方程。
Introducing the plastic strain the differential constitutive equation for viscoelastic and plastic materials is deduced from multi-integral constitutive equation for nonlinear viscoelastic materials.
考虑零构件的随机因素，将随机有限元方法引入到交变载荷下弹塑性有限元的迭代格式中，得到局部应力应变的随机响应，为低周疲劳可靠性分析提供了更精确的依据。
The component randomness is considered. The SFEM is introduced in the iterative formulas of EFEM under cyclic loading to obtain the random response of local stress and strain.
推导了交变载荷下弹塑性随机有限元的迭代格式，计算了局部多轴应力应变的随机响应。
The iterative formulas of elastoplastic stochastic finite element method (SFEM) under cyclic loading are deduced and the random responses of local multiaxial stress and strain are calculated.
本文采用有限元法和增量理论对小位移小应变的弹塑性接触问题进行分析。
In this paper, the contact problems of small displacement and strain have been analysed by finite element method and incremental theory.
利用该模型分析了复合材料宏观弹塑性应力-应变响应以及细观几何结构特征对宏观弹塑性性能的影响。
With the model, macroscopic stress-strain responses are studied and micro-structural geometry effects on macroscopic elastoplastic properties are analyzed.
考虑到土体的非线性性质，本文采用了弹塑性方法中的增量初应变法对耦合方程进行解答。
The nonlinearity of soil should take into account, so the article adopts "initial-stress" finite element approach to resolve the coupling formulation.
针对钢板冷却发生翘曲变形的问题，利用热弹塑性有限元法对中厚板冷却过程的温度场及应力应变场进行数值模拟。
The temperature and stress-strain field of steel plate runout table cooling are simulated using thermo-elastoplastic finite element method.
用有限元方法对平面应力条件下弹塑性材料的裂纹尖端应力应变场进行了计算。
The crack tip stress-strain field of elastic-plastic materials are analysed by finite element method in the plane stress condition.
本文根据弹塑性理论基本方程，导出了高水平均匀残余应力场由于钻孔引起的松弛应变与残余应力的关系公式。
When a high level isotropic stress field is disturbed by a drilled hole, a relation of relieved strain vs. residual stress is derived by the basic equations of elastoplastic theory.
应用推荐