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.
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。
Introducing the method of optimizing back analysis using displacement and summarizing the elastoplastic model.
因此,弹塑性模型更适合于强度折减有限元法分析土坡稳定性。
So the elastic - plasticity model is more compatible to slope stability analysis by FEM with shear strength reduction.
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.
提出了11参数性粘弹塑性模型,反映了泡沫塑料衬垫缓冲性能的特征。
The parameter model 11 is presented, and the characteristics of cushioning performance are raised.
采用适用于上海饱和软土的非线性粘弹塑性模型,研制了三维有限元软件。
The elasto viscoplastic constitution has been employed for 3D FEM programming of soft saturated clay in Shanghai.
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.
将所建立的超固结土模型推广为能够反映超固结土的初始应力各向异性的弹塑性模型。
The constitutive model for overconsolidated clays proposed by the authors was extended to an overconsolidated clay model with stress-induced initial anisotropy.
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。
A nonlinear elastoplastic model is applied to simulate the full face 3-d excavation process of a shallow tunnel embedded in layered soil.
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。
The modify Cam-Clay model is a elastoplastic model, it can reflect the deformation character of normal consolidation and low overconsilidation clay.
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。
Applying the method mentioned above to practical engineering to back-analyse the elastoplastic model and parameters of rock. Validating and utilizing the results identified.
试验验证表明:考虑扰动影响的弹塑性模型可以很好预测相应扰动状态下的砂土应力—应变—体变关系。
The test results show that the proposed model can well describe the strength-strain-volume change relations of sands at a given disturbed state.
在结构力学分析方面,以往的研究多是建立弹性或者弹塑性模型来研究格栅对沥青路面应力及弯沉的影响。
In the structural mechanical analysis, previous research is more to establish elastic or elastic-plastic model to study the grid reinforced effect on pavement stress and deflection.
为了研究静力预加载荷对诸如柱、圆柱壳等结构动态稳定性的影响,采用了一种简单的缺陷敏感弹塑性模型。
In order to study how the static preloading affects on the buckling stability of columns or cylindrical shells, a simple imperfection-sensitive elastic-plastic model is used.
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。
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.
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。
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.
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。
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.
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。
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.
通过与传统的黏塑性和改进的黏塑性模型结果的对比分析,进一步验证了黏弹塑性模型在中小尺度海冰动力学模拟中的可靠性。
The new constitutive model is further applied to simulating ice dynamics of the Bohai Sea and compared with the traditional VP, and modified VP models.
对结构采用精细的弹塑性模型进行动力弹塑性分析,梁柱单元用塑性区模型,剪力墙用带分布钢筋的壳元+混凝土弹塑性损伤模型。
Based on the finite element analysis the outrigger, this paper presents an elastic plastic dynamic analysis to system by using the combined Member story model.
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.
通过对条形装药爆破成腔机理的分析,建立了爆炸挤压成腔弹塑性简化模型。
Based on the mechanism analysis, the elastic plastic model of space formation caused by blasting with linear charges is established.
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.
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.
运用渡槽薄壁结构弹塑性动力分析模型,开展了渡槽非线性地震响应分析计算。
Based on the elastic-plastic dynamic model of the thin-wall structure aqueduct, the non-linear earthquake response analysis is presented.
针对旧污水沉降罐在安装刮泥机后的受力可靠性问题,建立了简化力学模型和三维弹塑性有限元模型。
The simplified mechanical model and three-dimensional elastic-plastic finite element models was found to analyze the reliability of sewage settling tanks equipped with scraping sludge machine.
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.
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.
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.
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