A simple formula for calculating pure shear strength of concrete is derived on the basis of the verified mathematical model of concrete failure surface, the elliptic paraboloid.
本文根据已论证过的混凝土破坏面，即椭圆抛物面的数学模型，报导出一个用以计算混凝土纯剪强度的简单公式。
The viewpoint that the interference area of the stress - strength interference model in reliability design is the probability of failure is discussed in this paper.
本文对可靠性设计中应力—强度干涉模型的干涉面积就是失效概率的观点，提出商榷。
Through analyzing rock failure due to rock burst in-situ, applying the rock burst strength theory and the stability theory, and using physical modelling experiment, the mathematical model is built.
数学模型是在实地分析岩爆破坏机制基础上，经过岩爆强度理论及稳定理论分析，并经过物理模型试验验证后建立的。
The model can reflect the softening characteristics and whole process of rock's deformation and failure, and the influences of surrounding stress on rock's strength.
该模型能反映岩石的软化特性及破坏的全过程，也能反映岩石强度受围压的影响。
On condition that the probability characteristics of load and strength are known, the reliability and failure rate of components at any time can be calculated by the model proposed.
在载荷和强度分布已知的情况下，可直接运用本文模型计算零件在任意时刻的可靠度和失效率。
Since the main failure reason of the steel rope is the fatigue of the metal, the fatigue reliability design of the crane steel rope can be executed by means of stress-strength interference model.
根据起重机钢丝绳失效主要是金属疲劳的原理，采用应力-强度干涉模型，对起重机钢丝绳进行了疲劳可靠性设计。
The main purpose is investigating the failure model and failure characteristic, and analyzing the strength, ductility, and the energy dissipation.
对比分析了原墙（破坏前）墙体的承载力、延性和耗能能力等性能。
The main purpose is investigating the failure model and failure characteristic, and analyzing the strength, ductility, and the energy dissipation.
对比分析了原墙（破坏前）墙体的承载力、延性和耗能能力等性能。
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