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- A fatigue failure criterion of the unidirectional laminate was established based on both the residual strength degradation model and the plastic formula of anisotropy materials proposed by Hill method. 在剩余强度衰减模型和希尔提出的各向异性材料塑性条件基础上建立单向层合板在任意应力状态下的疲劳破坏准则
- fatigue failure criterion 疲劳失效准则
- The results indicated that the fracture mode is the fatigue failure. 结果表明,其断裂形式为弯曲疲劳断裂。
- fatigue failure criteria 失效准则
- The failure criterion of asphalt concrete was not in good agree with the Mohr-Coulomb criterion. 另外,沥青混凝土的破坏准则也并非符合莫尔-库仑破坏准则。
- Hysteresis energy is a useful basis for the establishment of failure criteria in fatigue. 在建立疲劳破坏准则时,迟滞能量是一个有用的依据。
- The surface spalling and fatigue failure may occur after a long time of service, during wheel-rail rolling contact. 摘要钢轨钢的接触疲劳一直为铁路运输部门和研究机构所重视。
- By the action of high roatry speed,excentric shaft connection intensifies the fatigue failure of drill tool. 为了达到较好的防斜目的,必须增大钻进时钻头的转速,在高转速的作用下,偏轴接头加剧了钻具先期疲劳失效。
- According to Mohr-Coulomb failure criterion, the axial stress at failure in rock-soil triaxial tests is in linear relationship with the lateral stress. 根据莫尔-库仑破坏准则,岩土三轴试验的轴向破坏应力与围压之间呈线性关系。
- But the study on the rolling contact fatigue failure mechanism of super hard material coati-ngs is in grope. 但是目前对于超硬涂层材料滚动接触疲劳失效机理的研究还处于探索之中。
- A new failure criterion and elastic\|plastic constitutive relation for concrete under biaxial stresses is discussed in this paper. 讨论了混凝土在双向应力作用下的破坏准则和弹塑性本构关系。
- High compressive-shear stress beneath the contact point of ball bearing is the main reason for its fatigue failure. 滚珠轴承接触点附近的高压剪应力是引起轴承疲劳破坏的原因。
- An extended Mohr-Coulomb failure criterion is used to allow for shear strength variations as a result of changes in matric suction. 二是研究雨水入渗引发滑坡的物理过程并建立定量的分析模型,然后利用这种分析模型进行参数研究。
- Thermal fatigue. A type of fatigue failure wherein the cyclic stresses are introduced by fluctuating thermal stresses. 热疲劳:一种疲劳失效类型,循环应力是由于交变热应力引起的。
- Alternating stress produced by alternating dynamic ice force evidently results in the partial fatigue failure . 交变冰力引起的结构交变应力必将导致结构的局部疲劳损伤。
- The adopted failure criterion was a composite Mohr-Coulomb criterion with tension cut-off and the post-peak constitutive relation of rock was linear strain-softening. 计算中采用了莫尔-库仑与拉破坏复合的破坏准则,峰后岩石本构关系为线性应变软化。
- The strongest spring leads to fatigue failure caused by excessively high stress. 即使是强度最大的弹簧;也会因应力过大而导致疲劳损坏.
- First, the changing laws of cyclic strength, cyclic failure criterion and cyclic accumulate deformation are studied under different testing stress states. 主要的研究工作有以下几个方面:首先在不同试验应力状态下,研究饱和软粘土循环强度、循环破坏准则以及循环累积变形的变化规律。
- Conclusion Bone structures in fretting wear will induce fatigue failure and this will... 结论骨组织在微动过程中将发生疲劳破坏,从而造成假体松动。
- The failure criterion is a composite Mohr-Coulomb criterion with tension cut-off.Beyond the peak stress, the linear strain-softening constitutive relation is adopted. 峰值强度后的本构模型取为莫尔库仑剪破坏与拉破坏复合的应变软化模型。