应用传统强度理论和细观力学方法对几种韧性材料在复合载荷条件下的断裂机理、启裂位置、开裂方向进行了实验分析和应力场计算。
In this paper, fracture mechanism, position and direction of crack initiation of mixed mode fracture in several ductile materials are tested, and stress distributions of which are analyzed.
凹模在使用过程中，由于交变载荷的作用，使碳化物的棱角处应力集中出现裂纹，最终导致凹模开裂。
The crack appears at the edge angle due to stress concentration caused by alternating load, which finally leads to the fissuring of die plate.
介绍了改进PVC管材性能的方法，简介了PVC-M管材优异的冲击性能、抗开裂性能、耐点载荷能力和可焊性。
Measures to improve the properties of PVC pipes were introduced. The excellent impact property, anti-fracturing property, anti-point loading capacity and weldability of PVC-M pipes were introduced.
采用恒载荷和慢应变速率动态拉伸实验方法，测定了X80管道钢在不同充氢条件下的氢致开裂门槛应力和断裂应力。
The threshold stress and fracture stress of hydrogen-induced cracking of X80 pipeline steel are studied by constant load test and slow stain rate test.
结果表明，开裂点、开裂角、最大切向拉应力和临界载荷随椭圆的纵横轴比和倾角的不同而变化，由此可得到最危险的倾角。
The results show that opening point, opening angle, maximal tangential stress and critical load vary with aspect ratio and inclined angle. The most dangerous inclined angle is obtained accordingly.
在载重运行过程中，货箱连接立柱的本体结构承受严重的载荷，易出现薄弱区域开裂等问题。
In some strength loadcases like turn around, some areas near the connecting-pillar are loaded badly. Therefore, many strength problems come out.
在载重运行过程中，货箱连接立柱的本体结构承受严重的载荷，易出现薄弱区域开裂等问题。
In some strength loadcases like turn around, some areas near the connecting-pillar are loaded badly. Therefore, many strength problems come out.
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