提出了考虑拉压响应的弹脆性损伤演变的理论模型与本构方程。
The theoretical model and the constitutive equation with the response of both tension and compression for elastic brittle damage evolution taken into account are derived.
一个主要原因是车轮在钢轨上由于制动滑动产生的脆性马氏体所导致的踏面热损伤和蠕变。
One of important reasons is that the generation of brittle martensite due to brake sliding of wheels on rails leads to tread damage and its creep.
结论细胞骨架的损伤可引起细胞脆性增加、粘弹性下降，导致细胞生物力学特性的改变。
Conclusion the cytoskeleton injury could cause the increase of cellular fragility and the decrease of the viscoelasticity, which ultimately lead to the change of cellular biodynamics.
利用逾渗和重整化群理论初步分析了脆性岩石的临界损伤破坏行为，指示性地得出了岩石的临界破坏概率。
The paper analyzed the critical failure action and brittle rock with a penetration and reestablishment group theory. The critical failure rate of the rock was obtained.
本文提出了一种增量形式的受损弹脆性材料的本构关系，此关系考虑了材料与损伤两者的各向异性。
A damaged elasto-brittle material constitutive relation in incremental form which consideres anisotropy of both material and damage is presented in this paper.
对于钢桥，按照破坏形式对各类病害进行分类，主要有疲劳和脆性断裂、腐蚀、失稳以及机械损伤。
As for steel Bridges, the diseases can be classified into different kinds, which the important ones are fatigue and brittle failure, corrosion, buckling and mechanical failure.
经实测数据与所建模型对比验证，延性破坏、脆性破坏模式本构模型精度较高，可为岩石损伤评估提供依据。
Proved by the test data, the precision of constitutive model with brittle, ductile failure is higher, which can provide accurately the basis for rock damage assessment.
基于均匀化方法给出低孔隙率脆性岩石在热—力耦合荷载作用条件下的各向异性损伤模型和有效热传导特性模型。
An anisotropic damage model and an effective thermal conductivity model were presented based on homogenization techniques for low-porosity brittle rocks subjected to mechanical and thermal loadings.
参照经典塑性力学的屈服面理论，引入了温度作用下应力空间中脆性岩石的损伤面模型，定性地讨论了荷载和温度影响下损伤面时的演化规律。
Giving an imitation of traditional plastic theory , a damage surface model on brittle rock about temperature in stress-space is introduced and the evolutionary law is discussed qualitatively.
用基于风险检验评估方法分析了石化装置中运行的高温设备发生脆性断裂失效的可能性，介绍了利用回火脆化损伤因子确定最低升压温度的计算方法，为装置安全生产提供了可靠依据。
The method to determine the minimum upset temperature by means of the damage factor of temper embrittlement was introduced, and the dependable basis for equipment safe operation was offered.
提出了含三相正交分布等尺寸微裂纹的准脆性材料稳定扩展的细观损伤演化模型。
The stable growth of cracks in a brittle material with three mutually perpendicular families of microcracks under proportional tensile loads was studied.
认为糜棱岩是原岩韧性孔洞损伤后脆性破碎的结果。
Mylonite is thought as the result of mylonite parent rock's brittle crush after it is porosity damaged plastically.
探讨了脆性岩石动态损伤演化规律；
目的比较两种最大载荷值下牙科脆性陶瓷赫兹触压循环疲劳损伤模式。
Methods Hertzian contact technique with WC spheres was used to investigate the response of feldspathic dental porcelain to cyclic fatigue.
给出了微裂纹特征尺寸随应力变化的显式表达式，并由此得到了含微裂纹的准脆性材料损伤本构关系。
An explicit expression was derived for the variation of crack size with stress. A micro-mechanical damage constitutive equation was then given.
实验结果表明：[0]16层板破坏时表现出典型的不规则脆性破坏，纤维的损伤具有初始门槛值，而纤维的强化存在应变率门槛效应。
The experimental results show that disheveled catastrophic brittle failure is observed for the [0]16 specimens tested at quasi-static strain rates.
实验结果表明：[0]16层板破坏时表现出典型的不规则脆性破坏，纤维的损伤具有初始门槛值，而纤维的强化存在应变率门槛效应。
The experimental results show that disheveled catastrophic brittle failure is observed for the [0]16 specimens tested at quasi-static strain rates.
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