在地震前，产生前兆的源非常复杂，大多数情况下可能并非脆性破裂，而是塑性蠕滑或者有流体的参与。
Before earthquakes, the sources of precursors could be very complicated. They might be produced by plastic creep or can attribute to liquids but not crisp fracture in most cases.
文中将偏磨油管的破裂强度问题看作失稳问题，应用弹塑性有限元方法分析了偏磨油管的破裂强度。
We regarding resistancial intensity of lopsided abrasion vitta as destruction question, applying elastoplastic finite element method to analyzed the lopsided abrasion vitta′s resistancial intensity.
模型考虑容器壳体材料的弹性、塑性变形，适用于容器外壳在塑性变形范围内发生破裂的问题。
The elastic-plastic deformation of the vessel shell is taken into account in the model to suit for the crack problem of the vessel shell in the plastic deformation range.
首先根据室内测试和岩体力学参数估算结果，运用摩尔-库仑破坏准则计算边坡岩体的破裂角；其次，运用弹塑性有限元数值模拟方法进行了变形破坏规律研。
First, according to the results of tests in laboratory and evaluation of rock mechanical parameters, slope rock mass failure angles are calculated based on Mohr Coulomb criteria; Secon.
利用塑性分析上限定理，考虑岩土介质本身的非线性破坏准则，对各种不同破裂面边坡稳定性分析进行研究。
The slope stability analysis is studied with the nonlinear failure criterion based on the plastic upper limit theorem.
利用塑性分析上限定理，考虑岩土介质本身的非线性破坏准则，对各种不同破裂面边坡稳定性分析进行研究。
The slope stability analysis is studied with the nonlinear failure criterion based on the plastic upper limit theorem.
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