This paper mainly studies the strength softening characteristic of loess-like soil by triaxial shear test on the basis of primary research productions of loess.
本文在黄土已有研究成果的基础上,通过三轴剪切试验对类黄土(黄土状土)的强度软化特性进行了重点研究。
This paper has arrived at the compressive strength, shear strength, modulus of elasticity, poisson's ratio, moisture content, water absorption and softening factor of lime-sand brick masonry.
本文通过对灰砂砖及灰砂砖砌体的较系统的试验研究,得出了灰砂砖砌体的抗压强度、抗剪强度、弹性模量、泊桑比系数、含水率、吸水率及软化系数等。
Taking account of the strength softening effect of slippage, the beginning section of lateral shear curve is an ascending curve.
分析认为,由于孔壁界面滑移的软化效应,侧阻力曲线始端变为上升曲线。
The reason for the sawtooth chips is that the adiabatic shear localization occurs in the primary deformation zones when thermal softening exceeds strain and strain rate hardening.
锯齿形切屑产生的原因是第一变形区内因热软化超过应变和应变率强化而发生了绝热剪切局部化。
The discovery and the advance of the softening phenomenon of concrete due to diagonal cracking in reinforced concrete members subjected to shear are presented.
阐述了钢筋混凝土受剪构件中,混凝土软化现象的发现及其研究进展。
The stress - strain relationship of soil estabished from shear tests is distinguished into two kinds-progressive hardening type and post-peak softening type.
将土的剪切试验测得的应力-应变关系分成逐渐硬化类型和峰值后软化类型,提出了可以统一表示这两种类型应力-应变关系的表达式。
The mechanism of induced anisotropy, dilatancy, shear softening and cyclic mobility was discussed from the viewpoint of micro-mechanism.
感应各向异性,剪胀,剪切软化和循环流动的机制,从微观机制的观点出发,进行了讨论。
Firstly, dissipated energies induced by axial and lateral plastic deformations due to shear strain localization initiated at peak strength in strain softening stage is analyzed.
首先,由于在应变软化阶段的峰值强度的剪切应变局部化启动的纵向和横向的塑性变形引起的耗散能进行了分析。
When the dry density is relatively high, this dense specimen shows shear dilatation characteristics, and the effective principal stress ratio tends to be strain softening phenomenon.
干密度值较高时,土样处于密实状态,表现出剪胀特性,有效主应力比-应变曲线近于应变软化型;
Suggest the nonlinear elastic Constilutive model taking into the account of strain-softening, shear dilatancy(shrinkage)properties and stress path.
提出考虑土的应变软化、剪胀(剪缩)性和应力路径影响的非线性弹性模型。
Distributed shear strain and displacement in localized shear band were investigated considering degraded stiffness in the strain-softening process based on gradient-dependent plasticity.
基于梯度塑性理论,研究了应变软化阶段的刚度劣化对剪切带内部的局部应变及相对剪切位移的影响。
These models can reflect the behaviours of damage softening, elastic stiffness degradation and shear dilatancy.
这个模型能够反映节理面的损伤弱化,扩容和弹性刚度劣化等复杂特性。
Furthermore, the localization shear band bifurcation takes place at the point in the strain softening area, and the point would be far from the peak point with the increment of lateral pressure.
此外,岩石材料的剪切带分叉发生在峰值应力之后,随围压增加而逐步远离峰值点。
The strain localization on a shear band induced by post-peak softening is one of the most important deformations and strength characteristics of sand.
这种由软化特性引起的应变局部化剪切带是砂土材料非常重要的变形和强度特性之一。
The rock strain softening after rock peak and the shear expansion properties affect the plastic critical state.
岩石峰后的应变软化特性和剪切膨胀特性对塑性临界状态有重要影响。
Results show that the shape of shear stress-shear strain curves is hyperbolic; and no strain-softening phenomenon was observed in the tests.
分析结果表明:黏土—混凝土界面剪应力—剪切位移曲线仍大体呈双曲线形式,并未出现应变软化现象。
Results show that the shape of shear stress-shear strain curves is hyperbolic; and no strain-softening phenomenon was observed in the tests.
分析结果表明:黏土—混凝土界面剪应力—剪切位移曲线仍大体呈双曲线形式,并未出现应变软化现象。
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