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four-parameter failure criterion
相关语句
  四参数破坏准则
     With the four-parameter failure criterion presented in this paper, the influences are eliminated of the basic postulations of the Hooke law and the plain stress on the finite element calculation.
     提出了建立在应变空间上的混凝土四参数破坏准则,从而消除了Hooke定律假设和平面应力假设对有限元分析计算的影响.
短句来源
     Four-parameter failure criterion for concrete in strain space
     建立在应变空间上的混凝土四参数破坏准则
短句来源
  相似匹配句对
     Four species, i.e. C.
     确认了宽叶金粟兰、及己C .
短句来源
     On the"Four-Respects
     “四个尊重”解读
短句来源
     There are four studies.
     在研究中,采用了四个实验。
短句来源
     On the Four-Branch Classification
     四部分类法简论
短句来源
     Scattering Parameter
     散射参数
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This paper summarizs recent achievements in the research on ground stress.Considering the relation between the feature of rock mass and the state of high ground stress,an elastic-fracture consti- tutive model for rock is adopted.In this model,a four-parameter failure criterion is used to define the ultimate strength.An analysis method of stability and deformation of underground opening excavated in high ground stress areas is proposed.Using various initial stress fields(such as the magnitude,the direction...

This paper summarizs recent achievements in the research on ground stress.Considering the relation between the feature of rock mass and the state of high ground stress,an elastic-fracture consti- tutive model for rock is adopted.In this model,a four-parameter failure criterion is used to define the ultimate strength.An analysis method of stability and deformation of underground opening excavated in high ground stress areas is proposed.Using various initial stress fields(such as the magnitude,the direction and the ratio of principal stresses so on),comparative analyses of stability and deformation of the rock around an underground opening in high ground stress areas are carried out and some results of regularity are obtained.

本文分析总结了已有的地应力研究成果。考虑到高地应力与岩体特性的关系,对岩体采用四参数弹塑性开裂模型,提出了一种高地应力区地下洞室围岩稳定和变形的分析方法。用各种不同初始应力场(大小、方向、主应力比等)对直墙拱顶洞室围岩的稳定和变形状况作了分析比较,得出了一些有规律的成果。

With the four-parameter failure criterion presented in this paper, the influences are eliminated of the basic postulations of the Hooke law and the plain stress on the finite element calculation. In combination with the damage constitutive model, the present criterion was compared with other criteria in strain space, and the rationality and feasibility of the criterion were verified. With a simple form, the criterion can reflect the concrete strength precisely not only under uniaxial...

With the four-parameter failure criterion presented in this paper, the influences are eliminated of the basic postulations of the Hooke law and the plain stress on the finite element calculation. In combination with the damage constitutive model, the present criterion was compared with other criteria in strain space, and the rationality and feasibility of the criterion were verified. With a simple form, the criterion can reflect the concrete strength precisely not only under uniaxial stresses but also under multiaxial stresses.

提出了建立在应变空间上的混凝土四参数破坏准则,从而消除了Hooke定律假设和平面应力假设对有限元分析计算的影响.结合损伤模型,通过算例计算并与应力空间其他准则相比较,验证了该准则的合理性和可行性.该准则的特点是:形式简单,不仅能正确反映混凝土单轴应力状态下的强度,而且能很好地反映多轴应力状态下混凝土的强度.

 
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