In some cases, the continuous distribution model of fatigue failure life and stress amplitude level is more valuable in analyzing the damage of ponogena under complicated stress.
在某些情况下，如进行复杂应力条件下的疲劳素损伤分布分析，疲劳失效寿命和应力幅水平的连续分布模型更有意义。
For any brittle materials, the larger the inhomogeneous coefficient is, the larger the possibility of failure in low stress level is.
非均质系数越大，材料发生低应力状态破坏的可能性越大。
By raising stress level in the condition of unchanging failure mechanism of combustion welding rod, failure data was acquired in very short time.
在不改变燃烧焊条失效机理的前提下，通过提高应力水平，在很短时间内得到焊条的失效数据。
Granule failure of calcareous sand is very special at low stress level. The effect of confining pressure on granule farlure is analyzed and its deformation mechanism discussed.
针对低应力水平下钙质砂的颗粒破碎现象具有特殊性，分析了围压对钙质土颗粒破碎的影响，揭示其变形过程的力学机制；
Test results show that there are 2 or 3 species of failure modes for each stress level, and activation energy of different stress levels are different.
试验结果为每个应力等级下的失效模式有2 ~3种，不同应力级别确定的激活能有一定的差异。
The study about board level drop impact shows that: (1) The mechanical impact and bending of PCB are the main reasons which induce the solder joint stress even the drop failure;
研究结果表明，在跌落冲击条件下：（1）PCB的机械冲击和弯曲变形是导致焊点应力甚至跌落失效的主要原因；
The variation in stress state of soils due to the rise of ground water level and seepage of ground water is critical to the deformation and failure of slopes during and after heavy rainfall.
地下水位上升和地下水在土中渗流引起土体应力状态变化是导致斜坡在降雨过程中或降雨后变形与破坏的关键因素。
A linear elastic damage model based on finite element method at mesoscopic level was applied to investigate the three-dimensional failure process of rock subjected to various stress loadings.
采用细观弹性损伤模型和有限元计算方法实现岩石三维破裂过程的数值模拟。
A linear elastic damage model based on finite element method at mesoscopic level was applied to investigate the three-dimensional failure process of rock subjected to various stress loadings.
采用细观弹性损伤模型和有限元计算方法实现岩石三维破裂过程的数值模拟。
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