采用塑性增量理论，建立了波纹管液压胀形的应力、应变数值计算方法，解决了波纹管液压胀形工艺的理论计算问题。
By plasticity increment theory, the stress strain numerical calculate methods of bellows bulge forming, solvers theory calculating problems of bellows bulge forming technology are put forward.
预应力混凝土结构塑性计算理论与设计方法是理论界和工程界十分关注且较为棘手的问题之一。
The calculating theory and designing method of pre-stress reinforcement concrete structure plasticity is one of thorny problem that the theory circle and project circle pays close attention to.
从弹塑性理论出发以圆截面轴为例对校正应力与残余变形进行了分析研究，提出了在给定弯曲误差下的校正载荷的计算公式。
The paper has studied straightening stress and residual deformation of circular shaft by using elastic - plastic theory, deueloped calculation formula of straightening loud in given deflection error.
过去十年中运用计算机方面的进步，使空间结构在设计、稳定分析以及塑性性能等方面都有了很大的变化。
During the past decade advances in computerisation have resulted in major changes in space structure design, and int he analysis of their stability and plastic behaviour.
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.
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.
这主要是由于塑性成形数值模拟的高度非线性和大计算量特征，使得成形过程优化变得非常困难。
Optimization of forming process is a very difficult problem due to high nonlinearity and huge computational cost of numerical simulations.
计算机和计算机辅助技术在板料塑性成形方面的应用，与其他学科专业一样也越来越广泛和深入。
The application of computer and computer aided technology in the areas of blank shaping is increasingly the same wide and deep as other objects.
通过挠度计算，验证保温舱具有足够的强度和刚度，不产生塑性变形。
The heat container is verified to have sufficient the strength and by deflecting calculation without the plastic deformation.
在这个计算中，采用了流体——弹塑性变模量模型，使用了拉格朗日坐标有限差分方法和人造粘性，获得了冲击波、空腔和波形参数，并分析了这些参数。
In this computation a fluid-elastic plastic model and a finite difference method of Lagrange coordinate are used The parameters of shock, cavity and waveform are obtained and analysed.
本文采用粘弹塑性模型，提出计算地基变形及有效压缩层深度的新方法。
This paper presents a new method of calculating depth of compressible stratum, in which a viscoelastic-plastic model was adopted.
通过增量理论弹塑性有限元计算，对比分析了带和不带加载孔ct试样J积分之间的差异。
The differences of J-integral between CT specimens with and without loading holes have been compared and analyzed by means of incremental theory elastic - plastic finite element calculations.
本文用三维弹塑性有限元法计算了含圆孔对称复合材料层板的层间应力分布。
In this paper, the interlaminar stress distributions of symmetric composite laminates with a hole are predicted by the three-dimensional elastoplastic finite element method.
目前，对钢筋混凝土连续梁板在竖向荷载作用下的计算，常用的有两种方法，即按弹性方法计算和按塑性方法计算。
At present, The calculation method of continuous board and beam under vertical loads has two methods: elastic method and plastic method.
全面地解决了板条和型材弹塑性弯曲后的回弹计算问题。
The calculation of the springback of strips and shaped beams after their elastic-plastic bending has been solved completely.
对刚塑性有限元计算的结果与试验结果进行比较，并提出缩口的最佳模角。
The theoretically calculating results are compared with those of experiment and the optimum die Angle in nosing process is proposed.
推导出接触爆炸作用下线性硬化材料板的最大变形量计算式和塑性变形范围的计算式。
The computing formulas of the maximal deformation distance and the plastic area limits of the linear hardening plates were deduced.
利用所提分析模型对振动台试验模型进行了弹塑性时程分析，计算结果与试验结果吻合良好，验证了分析模型的正确性。
Analytical results of elastoplastic time history analysis correlated very well with the experimental results of the shaking table test, proving the validity of the proposed model.
并基于塑性理论，编制了“墙梁结构弹塑性有限元法计算程序”，对一些算例进行了验算，得到较好的结果。
A finite element program of wall beam structure under elastoplasticity condition is compiled based on the plastic theory and used to test some practical samples.
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.
本文给出了计算钢压杆弹塑性稳定极限承载力的有限条塑性系数增量初应力法。
The paper presents a numerical method, named the Finite Strip Plasticity Coefficient Increment Initial Stress Method, to solve the elastoplastic stability ultimate loads of steel columns.
计算中未发现有二次塑性区。
基于塑性力学上限定理的土压力计算，在数值上可以通过单元集成法来实现。
Earth pressure calculation based on upper bound theorem of plasticity can be numerically performed by element integration method.
并用弹塑性断裂理论的J积分，计算和分析了非线性时砌石体的断裂韧度。
Simultaneously, the fracture toughness was analysed, and calculated by means of J-integrals adopting the theory of elastoplastic fracture.
提出了适用于长期循环荷载作用下粉细砂累积变形计算的等效黏塑性本构模型及数值模拟方法。
A new constitutive model, namely equivalent viscoplastic model, adaptive to cumulative deformation computation of sandy silt under long-term cyclic loading is proposed.
这表明本文推导的计算公式是可行的，近似塑性条件对理论计算的挤压变形力具有显著的影响。
This indicates the formulas are feasible, and approximate plasticity conditions have the distinct effect on the value of extrusion force given by calculating formulas.
本文从线弹性断裂力学的精确解出发，在考虑材料强化影响的情况下，计算出裂纹前缘的塑性区。
The exact solution of linear elastic fracture mechanics is suggested in this paper and the plastic zone of crack tip is calculated under the condition of strain-hardening of material.
本文从线弹性断裂力学的精确解出发，在考虑材料强化影响的情况下，计算出裂纹前缘的塑性区。
The exact solution of linear elastic fracture mechanics is suggested in this paper and the plastic zone of crack tip is calculated under the condition of strain-hardening of material.
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