Based on the theory of elasticity and molar-Coulomb strength failure criterion, we proposed the prediction method for hole enlargement ratio in the condition of underbalanced drilling.
基于弹性力学理论及岩石摩尔-库仑强度破坏准则，提出了欠平衡钻井条件下井径扩大率的预测方法。
When the consolidation ratio is the same, the effect of failure criterion on the dynamic shear strength would reduce with the failure time of vibration increasing.
相同固结比时，破坏标准对动强度的影响随着破坏振次的增加而减小。
There is a macro-crack and micro-crack system in rocks, which affects almost all the mechanical properties of rocks, especially the failure mechanism and the strength criterion.
岩石内部存在一个宏观的和微观的裂隙系统，岩体的一切力学特性几乎都与这个裂隙系统有关，当然岩体的破坏机理与强度准则也不例外。
Shear strength and shear strain are the basic properties in mechanics of concrete. They also serve as important data for finite element and failure criterion research on concrete.
抗剪强度和剪切变形是砼的基本力学性能，又是强度理论研究和有限元分析的重要数据。
Although there are many experiments under multiaxial stress states, most of the results mainly concern to the strength and failure criterion of concrete.
虽然三轴试验较多，但是主要是针对三轴情况下混凝土的强度(破坏准则)，没有具体针对不同围压应力比下的应力—应变关系做出研究。
This paper analysises technical reason of sandwich FRP water tank failure. The design of FRP vessels can't only according to material strength, must adopt the criterion of limit strain.
本文通过分析FRP夹层结构水箱失效技术原因，阐明设计FRP容器不能仅按材料强度，而必须采用限定应变准则。
The failure envelopes of dynamic strength of frozen silt under different strain rates resemble each other in shape, namely, obey the parabola failure criterion.
不同应变速率下的动强度包络线呈现相似形式，服从抛物线破坏准则。
The strength criterion can simulate the failure characteristics of jointed rock mass reflected by relationship between resistance and response.
所建立的各向异性强度准则能真实地模拟各向抗力与响应的相互关系所反映的节理裂隙岩体的破坏特征。
The strength of filament-wound pipe is evaluated by ANSYS. With properties of its layer element and the maximum stress criterion, the pressure failure load is obtained.
基于A NSYS有限元分析软件，利用其中的层合板单元，对纤维缠绕复合材料弯管的强度进行分析，并进一步预测了弯管的破坏压力。
As a key of finite element method based on shear strength reduction, the slope failure criterion will affect the accuracy of the calculation.
作为强度折减法的关键技术问题，边坡失稳判据直接影响计算的准确性。
As a key of finite element method based on shear strength reduction, the slope failure criterion will affect the accuracy of the calculation.
作为强度折减法的关键技术问题，边坡失稳判据直接影响计算的准确性。
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