| 1. | The criteria of cord rubber composite under tensile condition
橡胶复合材料的失效准则 |
| 2. | Reliability analysis of pile foundations considering different failure criteria
采用不同失效准则的桩基可靠度分析 |
| 3. | Tsai - w u failure criterion
吴失效准则 |
| 4. | There is some of the fuzzy on the defining standard of failure because the abrasion failure of machine facility is a consecutive and gradually failure
由于机械设备的磨损失效是一种连续的渐发性失效，因此在判别失效准则上存在着模糊性。 |
| 5. | The model consists of a stress analysis and a failure analysis . the types and extent of damage in the woven composites are predicted by a failure analysis which including a set of proposed failure criteria and material degradation models
提出了相应的应力分析模型、失效分析模型、失效准则、刚度折减模型，计算出载荷与时间的关系和最后的破坏载荷。 |
| 6. | The highlights of this paper include : hoop toughness criterion for longitudinal heat checking of tool joint was introduced firstly ; failure criterion for crescent - shaped wear casing was established according to the results of full - scale collapse tests ; new - typed alloy for hardbanding of tool joint was developed , its property has showed good performance in the tests
本文的主要创新点在于：以现场失效案例分析为基础，提出了钻杆接头纵向热裂的横向韧性判据；通过对已磨损套管的实物挤毁试验研究，确定了不均匀磨损套管的挤毁失效准则；设计出了具有独立知识产权的钻杆接头硬化带用新型耐磨减摩合金的成分，经实验室试验表明其性能可以达到或超过国外同类产品。 |
| 7. | Furthermore , the fiber volume fraction of each inclined and horizontal unidirectional " lamina was assumed to be the same as that of the composites . three - dimensional stress - strain analysis was applied to each unidirectional lamina that was assumed to be transversely isotropical under on - axis coordinate system . carrying out the integration and averaging of stiffness yielded the effective elastic moduli of 3 - d braided structural composites
采用三维应力?应变分析，在单胞的长度方向积分和平均，在给定的应变边界条件下，采用刚度体积平均的方法，预测三维编织结构复合材料的有效弹性模量；在空间多向应力的基础上，通过对三维编织结构复合材料破坏机理的探讨，摘要提出了适用于三维编织复合材料细观强度失效准则，预测三维编织结构复合材料的强度性能。 |
| 8. | Combining the residual stress with gmc model , residual stress ’ s influences to the composites ’ strength are analyzed . based on ansys parameter design language , this paper develops the program of composite structures ’ progressive failure . failure criterion based on macro - stress fields ( maximum stress criteria and hashin criteria ) and micro - stress fields ( analysis methods based on huang model and gmc model ) are added to the program , results of different criterion are compared
利用ansys软件为技术平台,采用参数化设计语言,开发了复合材料逐步损伤分析程序,分别采用基于宏观应力的失效准则(最大应力准则及hashin准则)和基于细观应力的失效准则(基于huang模型和gmc模型的失效判别方法)对复合材料结构进行了逐步损伤分析,并将各失效准则的分析结果进行对比。 |
| 9. | Based on fuzzy characteristics in durability failure criterion of concrete structures durable life was estimated , in which process survival analysis method was considered with fuzzy theory and the contribution of statement of truncation data was taken into account
结合混凝土结构在耐久性评价中包含许多模糊性因素的特点，将模糊数学的思想融入到生存分析法中。基于结构的耐久性失效准则，并考虑删失数据的状态对混凝土结构耐久寿命的贡献，对混凝土结构的耐久寿命进行了统计分析。 |
| 10. | Final ly , we specially research durability of corrosion of steel bar , discuss carbonation of concrete corrosion of chlorine ion and mechanism of corrosion of steel bar , give failure rule of durability , preliminarily establish durability evaluation theory . the paper basically set up frame system of durability basic theory
最后对钢筋腐蚀的耐久性问题进行了专门研究，详细阐述了钢筋锈蚀机理、混凝土碳化、氯离子侵蚀问题，提出结构耐久性失效准则，初步建立耐久性评估理论。本文初步完成了耐久性基本理论框架体系。 |
