条带屈服模型预测较准确但需要数值迭代求解,计算量大,且程序复杂,不利于工程应用;
Of these, the strip yield models can make precise predictions for the overloading effect, but they are too complicated for engineering applications.
基于带状屈服模型的数字仿真方法在航空航天结构上已经开展运用,但尚未用于潜艇结构疲劳断裂问题。
The numerical simulation method based on the strip-yield method has begun to be used in the air space structures, but not used in the fatigue questions in the submarine.
对封闭型分级单屈服面模型参数中的阶段改变参数和硬化参数的优化进行了研究。
In this paper, optimization of phase change parameter and hardening parameter of closed hierarchical single surface model is studied.
更为主要的是该模型还可以用于解释泡沫压裂液的屈服应力和壁面滑移现象。
Especially, this model can also explain the yield stress and wall slip phenomena for foam fracturing fluid.
文章为高压传压介质叶蜡石选择了一个塑性本构模型,它包括DP屈服准则和相关联的流动准则。
The plastic constitutive model which involves DP yielding principle and relevant flowing principle was selected for high pressure conduction medium pyrophyllite.
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.
同时,提出了岩体材料屈服后的包络型软化曲线,为岩体材料的非线性计算提出了完整的计算模型。
The envelopes of softening curves for post yielding of rock mass materials are also presented to give the complete computational model.
应用有限元方法建立了可考虑屈服应力温度相关效应的粗糙表面热弹塑性接触模型。
A thermal elastoplastic contact model which can take into account the effects of temperature-dependent yield strength was developed by using finite element method.
研究了考虑结构性丧失和硬化的结构土屈服面函数、流动法则、硬化规律和弹性规律等,构建了一个结构土的弹塑性本构模型。
After researching of the yielding function, suitable flow rule and harden law and elastic law of structured soil, a structured soil constituted model has been proposed.
建立了该钢的高温屈服应力模型。
The high temperature yield stress model of the steel has been set up.
根据结构性土体的变形特征和屈服准则,建立打桩力学模型。
Mechanical model for pile-driving is presented according to the soil deformation behavior and yielding criterion of structural soft soils.
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.
编制的软件有友好的界面并可用于主应力空间中各种工程材料屈服面和破坏面的模型及计算机辅助教学。
The present users-friendly software can be widely used in establishing the yield and failure surfaces for various engineering materials and the computer aided instruction (CAI).
常用的光弹性模型和方法能够指明原型材料的屈服点是否将被超过。
The conventional photoelastic modes and procedures suffice to indicate whether or not the yield point of the material of the prototype will be exceeded.
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.
证明了非均匀模型的极限阻尼力是均匀模型的最大阻尼力(屈服剪力)。
Consequently, the limit damping force of the unequal model proves the peak damping force (yield shear force) of the equal model.
参照经典塑性力学的屈服面理论,引入了温度作用下应力空间中脆性岩石的损伤面模型,定性地讨论了荷载和温度影响下损伤面时的演化规律。
Giving an imitation of traditional plastic theory , a damage surface model on brittle rock about temperature in stress-space is introduced and the evolutionary law is discussed qualitatively.
本文就消能减震结构设计参数,即消能部件的支撑刚度、层间最大阻尼力与结构层间屈服力比值等恢复力模型参数的选取进行了讨论。
The design curves of equivalent damping ratio to the brace stiffness, and ratio of maximum damping force of the damping device to the inter-story yield shear force of the structure are proposed.
其次,用试验找出符合力学模型的胶接固化工艺条件,并用试验验证用被粘材料的屈服强度估算接头能承受的最大拉伸力的合理性。
Thirdly, the optimum curing process parameters suitable with the mechanics model are found out and rationality of the estimated value is also validated by test.
本文中建议了一个包含塑性体应变和偏应变两个硬化参数的封闭屈服面模型,可以同时应用于正常固结土和超固结土。
In this paper a double hardening model with two hardening parameters (i. e. plastic volumetric strain and shear strain) and a single smooth yield function has been proposed.
采用金属材料微元屈服极限随机分布模型,计算出每次循环产生的微观塑性应变,并与用单调拉伸试验确定的材料真实断裂延性联系起来。
Randomly distributed models of micro-plastic strains were used to calculate the micro-plastic deformation produced at each cycle of the steel under high cycle fatigue test.
模型引入不同形状的等孔隙比线与屈服线,并考虑了变形对土水特性的影响。
The concept of equivalent void ratio curve (EVRC), which is different from the yield curve, is introduced in the model.
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.
该含微孔材料模型扩充了孙毅的材料模型,其屈服面由膨胀和运动平移组合而成。
The void - containing material model is based on Sun' s material model. Its yield surface consists of a combination of isotropic expansion and kinematic translation.
根据屈服面的几何形状,分析了模型参数的取值范围。
The spans of model parameter are analyzed in terms of reasonable shape of yield locus.
本文通过对上海软粘土流变特性的试验研究,在总结前人工作的基础上提出了一个带双屈服面的流变模型。
From tests on Shanghai soft soil and predecessors' works a double yield surface rheologic model has been introduced.
本文分析了回转壳体正负成形的力学模型,基于应力屈服条件对回转壳体的变形进行了分类;
In this paper, the mechanical model of positive-negative formation for revolving shell is analyzed, the classification method is given according to the stress yield criterion.
采用关口—太田各向异性模型,实测资料表明预测的变形偏大,且屈服面上有奇异点。
The precision of Cam clay model is poor and the Sekiguchi Otha model gives excess deformation and a singularity point on the yield locus.
材料性质采用理想的刚塑性模型,混凝土屈服准则采用不考虑混凝土拉应力的修正的库伦屈服准则。
The materials are assumed to be rigid-perfectly plastic. Modified Coulomb failure criteria with tension cut-off are adopted to predict yielding of concrete.
材料性质采用理想的刚塑性模型,混凝土屈服准则采用不考虑混凝土拉应力的修正的库伦屈服准则。
The materials are assumed to be rigid-perfectly plastic. Modified Coulomb failure criteria with tension cut-off are adopted to predict yielding of concrete.
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