The relationship between acoustic emission (AE) parameters and damage variable is obtained by applying the damage theory and microelement statistical strength theory.
由损伤力学理论与微元强度统计理论，得到了岩石声发射参数与损伤参量的关系。
The model about the relationship among AE parameters, damage variable and strain is derived by applying the damage theory and micro-element statistical strength theory.
本文运用损伤理论和微元强度统计理论导出了声发射参数与损伤参量及应变的关系模型。
On the basis of statistical theory, the distribution probability of full graded concrete strength and the relation between the sample size and coefficient of variation are introduced.
运用统计学理论给出了全级配混凝土试件强度的概型分布，导出了试验样本容量与变异系数之间的关系式。
Based on the size effect of structure fracture and the strength theory of fabric bundles, the macro statistical scaling effect of materials is achieved.
从结构破坏的尺寸效应入手，利用纤维束强度理论，得到了材料的宏观统计力学效应。
Based on the micro mechanical feature of materials and the strength theory of fibrous bunchiness, the macro statistical size effect of materials was gained.
从材料的微观力学性质入手，用纤维束强度理论，得到了材料的宏观统计力学效应。
Researching from micro mechanical feature of materials and using the strength theory of fabric bundles, we gain the statistical scaling effect of material in normal scale.
从材料的微观力学性质入手，利用纤维束强度理论，得到材料的宏观统计力学效应。
Based on random distribution of interior defect in rock, a statistical damage constitutive model for rock is developed by using the continuous strength theory and statistical theory.
结合连续强度理论和统计理论，从岩石内部缺陷分布的随机性出发，建立了岩石统计损伤本构模型。
Then, on the basis of the expression for notch strength of brittle material and the fundamental principle of probability theory, correlations between the statistical characteristic parameters o.
进而根据脆性材料切口强度表达式和概率论一般原理，求得了切口强度和弯曲强度统计特征参量间的相互关系表达式，并进行了验证。
Then, on the basis of the expression for notch strength of brittle material and the fundamental principle of probability theory, correlations between the statistical characteristic parameters o.
进而根据脆性材料切口强度表达式和概率论一般原理，求得了切口强度和弯曲强度统计特征参量间的相互关系表达式，并进行了验证。
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