本文推导了材料为理想弹塑性的空间梁单元弹塑性刚度矩阵的显式形式。
An explicit expression of stiffness matrix for a 3-dimensional beam made of elastic-plastic material is derived in the paper.
本文根据焊接热传导及热弹塑性的研究现状，对如下两个问题进行了探讨。
Based on the situation of welding thermal conduction and thermo-elastoplasticity research, this paper explores some problems in this field.
通过弹塑性的有限元模拟和不平衡推力法计算，对其稳定性进行分析研究。
The stability of rock mass is studied with FEM simulation and the unequal thrust method.
同一土层在不同的水位变化模式下可表现为弹性、弹塑性或粘弹塑性的变形特征；
An identical soil stratum may exhibit elasticity, elasto-plasticity or visco-elastoplasticity under different modes of groundwater changing.
分析了北京机场机库结构弹性的和弹塑性的地震反应，以及结构在强震下倒塌的全过程。
The earthquake response of the Beijing hangar is studied on the basis of linear, nonlinear and collapse analysis.
并在求解温度场的基础上按热弹塑性理论计算了应力场及最终的残余应力。
Both thermal stresses and residual stresses are calculated according to thermal elastoplastic theory based on the calculation of temperatures.
介绍了一种弹塑性状态轮盘的实验应力换算新方法。
In this paper, a new method on experimental strain stress conversion of elastoplastic rotating disc is described.
求解过程中的介质振动，是一种噪音，可引起弹塑性介质计算结果误差，而弹性介质的计算结果几乎不受影响。
The medium vibration during solving process is a noise rather than a more real simulation to medium mechanical behavior and could cause calculation error for elastoplastic medium.
采用时程分析法分析了该组合结构在多遇地震作用下的弹性地震响应和在罕遇地震作用下的弹塑性位移响应。
The elastic response of structure under frequent seismic actions and the elastoplastic response under infrequent seismic actions are calculated by the method of time-history.
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.
利用土体的塑性流动理论，提出了用于描述饱和砂土动力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 dynamic behavior of the saturated sands is developed.
撞击过程实际上是一个防撞梁在船体撞击作用下的弹塑性动力响应问题。
The process of impact is really an elastoplastic dynamic response by the action of ship impacting anticollision beam.
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.
基于弹塑性理论的稳定分析方法。
对于考虑介质与结构弹塑性性质的课题，解析解更难以求得。
The problem becomes more sophisticated when elastoplastic properties of rock mass and structures are considered.
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.
采用数值分析方法对冲击压痕法测量残余应力的弹塑性变形过程进行了理论分析。
The indentation method of residue stress measurement depends on strain measurement around an indention caused by an impacting sphere.
利用弹塑性理论建立了孔冷挤压的载荷、位移、应力以及残余应力分布表达式；
The expressions of load, displacement, stress and residual stress distribution for hole cold_extrusion process are established by using elastic_plastic theory.
本文提出了一个求解弹塑性激波衰减规律的级数解法，给出了各未知量级数展式的通项表达式。
A series solution for the attenuation of an elastic-plastic shock wave and expressions for the general terms of the series are given in this paper.
提出了一个新的孔压公式；给出了非线性弹性模型和弹塑性模型的孔压系数的表达式。
It presents a new pore pressure formula and proposes an expression of pore pressure coefficient for non-linear elastoplastic models.
但这些研究多建立在弹性阶段分析的基础之上，对于弹塑性阶段的选波采用了与弹性阶段相同的特征周期。
But these researches all established on the stage of elasticity analysis, the same characteristic period of response spectrum was used for the stage of elastoplastic analysis.
本文对局部经受高温热循环构件的热弹塑性应力进行了有限元分析。
In this paper, the thermal elastic-plastic stresses of the components which underwent local high temperature cycle were analyzed by FEM.
为配合卷板设备数控系统的研制和对卷板工艺过程进行优化，建立了三辊数控卷板成形过程的弹塑性大变形接触问题的有限元模型系统。
To cooperate with the development of the numerical control system of plate bending and to optimize the process, the deform law of this process has been studied.
由于采用显式差分法，它尤其适合于材料的弹塑性、大变形分析以及施工过程的模拟。
Because of the application of explicit difference method, it is especially suitable to elastoplastic analysis, large deformation analysis and construction process simulation.
作为弹塑性求解问题的简化方法，极限分析比传统的弹塑性增量计算效率更高、更实用。
As a simplified method for elastoplastic analysis, limit analysis method is more efficient and practical than the traditional increment method.
试验验证表明，用二次规划求解的强迫转角法是进行钢筋混凝土连续梁弹塑性分析的有效方法。
Some experiments show that the "imposed rotation method" derived from quadratic programming is a useful method in elastoplastic analysis of reinforced concrete continuous beams.
考虑恒定的热传递和热弹塑性变形引起的粗糙峰变形，对多层介质粗糙表面热弹塑性接触模型进行分析。
A thermal elastoplastic asperity contact model is investigated, which takes into account the steady-state heat transfer and the asperity distortion due to thermal elastoplastic deformations.
可基于截面刚度矩阵以及现有的位移模式推导出弹塑性阶段的单元刚度矩阵。
According to section stiffness matrix and available displacement mode, element stiffness matrix of elastoplastic stage was derived in this paper.
应用弹塑性介质的本构理论，视岩体为弹塑性体，得到隧道开挖引起的地层应力变化计算公式、计算程序。
In the application of elastoplastic medium theory, the rock and soil are assumed to be elastoplastic medium, and the stress change due to tunnel excavation can be calculated, too.
应用弹塑性介质的本构理论，视岩体为弹塑性体，得到隧道开挖引起的地层应力变化计算公式、计算程序。
In the application of elastoplastic medium theory, the rock and soil are assumed to be elastoplastic medium, and the stress change due to tunnel excavation can be calculated, too.
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