The basic conception on geotechnical multiply yield surface elastoplastic model is simply described.
提要本文简述了岩土多重屈服面弹塑性模型的基本概念。
Introducing the method of optimizing back analysis using displacement and summarizing the elastoplastic model.
对位移反分析方法作了介绍,并对各种弹塑性模型进行了总结。
A nonlinear elastoplastic model is applied to simulate the full face 3-d excavation process of a shallow tunnel embedded in layered soil.
文章应用非线性弹塑性模型,对层状土地层中浅埋隧道全断面开挖过程进行了三维有限元分析。
The fitting results show that the visco-elastoplastic model is more suitable than the Burgers model to describe rock rheological characteristics.
拟合结果表明,西原模型比伯格斯模型更适合于描述岩石的蠕变特性。
The modify Cam-Clay model is a elastoplastic model, it can reflect the deformation character of normal consolidation and low overconsilidation clay.
修正剑桥模型是一种弹塑性模型,在许多情况下可以较好地反映正常固结和弱超固结粘土的变形特性。
A three dimensional elastoplastic model was established to explore the mechanical aspects of the India-Asia continental collision by finite element modeling.
用三维有限单元模型模拟了印度—亚洲大陆碰撞在板内的力学效应。
Applying the method mentioned above to practical engineering to back-analyse the elastoplastic model and parameters of rock. Validating and utilizing the results identified.
结合具体工程,将以上提出的方法应用于岩体弹塑性模型及参数辨识,并对辨识结果进行了检验和应用。
It is proposed that the ideal elastoplastic model can be used to determine the safety factor, and the variable modulus elastoplastic model to calculate the deformation field.
因此,建议采用理想弹塑性模型的强度折减法确定安全系数,采用变模量弹塑性模型强度折减法确定变形场。
At present, only the strength parameters are reduced when the strength reduction method is used to analyze the slope stability; moreover, the ideal elastoplastic model is used.
目前用于边坡稳定性分析的数值方法中的强度折减法通常是仅对强度参数进行折减,且采用的是理想弹塑性模型。
Based on these, a 3d elastoplastic model is established to study the whole interaction among pile, soil and tunnel in the cohesive foundation with actual tunnel construction steps.
在此基础上建立三维弹塑性模型,模拟实际的施工过程,从整体上研究黏性土地基中桩—土—隧道三者间的作用特征。
The impacts on the security of Xifeihe River left embankment under coal mining are evaluated with elastoplastic model, two-exponent rheological model and probability integral method.
然后利用数值模拟软件中的弹塑性模型和流变模型及概率积分法开展煤层开采对西淝河左大堤安全的影响评价。
Based on the constitutive framework of unsaturated soils established by the continuum porous medium soil mechanics, an elastoplastic model for unsaturated soils in triaxial stress state is formulated.
基于连续介质土力学的本构模型框架,提出了一个三轴应力状态下的非饱和土本构模型。
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。
In view of the anisotropic damage characteristics of concrete under multiaxial stress state, an anisotropic elastoplastic damage model is presented.
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。
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.
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。
On the experiment of Wang Huan-ding, an elastoplastic biaxial hysteretic model for variable stiffness base isolator made of concrete-filled steel tubular short column is proposed in this paper.
在王焕定等人试验的基础上,针对变刚度钢管混凝土短柱隔震装置提出了便于弹塑性时程分析中应用的双向恢复力模型。
Based on the plastic flow theory of soils, an elastoplastic constitutive model for describing the dynamic behavior of the saturated sands is developed.
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。
The model can calculate elastoplastic properties of composites correctly, which is verified by experiments and theoretical analysis.
试验及理论计算表明,该模型能够较好地预测复合材料宏观弹塑性性能。
The transverse elastoplastic mechanical properties of fiber bundle reinforced composites were studied by using the micro mechanical model and finite element method.
利用细观力学模型和有限元法研究纤维束复合材料的横向弹塑性力学性能。
A thermal elastoplastic contact model which can take into account the effects of temperature-dependent yield strength was developed by using finite element method.
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 asperity contact model is investigated, which takes into account the steady-state heat transfer and the asperity distortion due to thermal elastoplastic deformations.
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。
Combined with experimental results, a simplified mechanics model for the elastoplastic analyze of the new type of hollow ball bolted joint is built in the paper.
本文结合试验研究的成果,建立了新型空心螺栓球节点弹塑性分析的简化力学模型。
In the framework of the multiple potential surface elastoplastic theory, the discontinuous bifurcation model used to simulate the failure of the jointed rocks is presented in this paper.
基于多重势面弹塑性理论分析局部化问题,构造了适用于裂隙岩体破坏的多重势面不连续分叉模型,建立了求解局部化方向的数值方法。
All these lead to the model of the thermal elastic stress, thermal elastoplastic stress and residual stress based on some simplications.
在此基础上,建立了能反映整个激光加工过程的主要物理特征的热弹性应力、热弹塑性应力以及残余应力的简化模型。
So far, to the authors' knowledge, the application of elastoplastic soil model in the superstructure-foundation-soil interaction has not yet been worked out in China.
在国内,尚未见弹塑性地基模型用于研究高层建筑与地基的共同作用的报导。
A finite element mathematical model was developed to calculate the thermal elastoplastic stress of continuous casting billet in mold.
建立了结晶器内连铸坯热弹塑性应力有限元数学模型。
With the model, macroscopic stress-strain responses are studied and micro-structural geometry effects on macroscopic elastoplastic properties are analyzed.
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。
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.
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。
A three dimensional elastoplastic finite element model is presented for thermomechanical coupled finite deformation problems, and using the model, a slab hot rolling is computer simulated.
建立了三维热力耦合问题弹塑性有限变形有限元方法,并对板材热轧过程进行了计算机模拟。
Thus in this paper a two-dimension thermal elastoplastic and creep stress (TEPC) model for thin slab strand is developed.
针对这一目的,文中建立了薄板坯连铸二维热弹塑性蠕变应力(TE PC)模型。
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