Experimental study is carried out to study the reasonable statistical model for the random fracture toughness data of LZ50 axle steel.
试验研究了LZ 50车轴钢的断裂韧度的合理统计模型。
Based on analyzing the micro critical seepage phenomena of gas-liquid two-phase flow in a single fracture, a random and compound mathematical model was constructed to describe this phenomenon.
通过对裂缝中气液二相流体临界渗流现象的分析推理，建立描述这一现象的随机混合渗流数学模型。
This paper is devoted to the problems concerning the propagation and fracture of the cracks on the welds of the tubes under the random load conditions.
本文研究在随机载荷作用下，管状杆件焊接部位裂纹的扩展及断裂问题。
In engineering fracture analysis, random boundary imperfections as notches or cracks are common and important.
在工程断裂分析中任意边界缺陷如缺口或裂纹群是常见和重要的情况。
The fracture surface is rather rough in sinusoidal vibration, while is smooth in random vibration.
正弦振动断口非常粗糙，而随机振动断口比较平滑。
According to the view of random arrival time of incident wave, theoretical analysis is carried out on the dynamic fracture regulation of rock bar.
从应力波随机到达的角度对均质岩石杆件动态断裂规律进行理论分析。
The fracture of parallel to grain on air-dry wood texture show brittle fracture, and its surface texture with a fractal structure with random or statistical sense of self-similar.
气干木材的顺纹理断裂则表现出脆性断裂的行为，木材顺纹理断裂表面具有某种随机的或统计意义上的白相似结构而具有分形结构。
According to statistic stationary random process theory, a set of three - dimensional indexes and methods describing the shape of spatial curved surface of rough fracture have been presented.
根据数理统计原理，从随机平稳过程理论出发，提出了一套描述裂隙空间曲面几何形态的三维指标和方法。
According to statistic stationary random process theory, a set of three - dimensional indexes and methods describing the shape of spatial curved surface of rough fracture have been presented.
根据数理统计原理，从随机平稳过程理论出发，提出了一套描述裂隙空间曲面几何形态的三维指标和方法。
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