1) brittle splitting failure
脆性劈裂破坏
2) splitting failure
劈裂破坏
1.
It is of great significance to study the coalescence mechanism of splitting failure of rock masses with intermittent joints under compression.
利用脆断区长度和荷载之间的关系,从理论上分析了断续节理产生劈裂破坏的贯通机理,并且确定了断续节理岩体发生劈裂破坏的强度。
2.
From the perforation mechanism of splitting cracks,the criterion of splitting failure is established based on analysis of stress intensity factor of .
首先从劈裂裂纹的贯通机制出发,在断裂力学应力强度因子分析的基础上,根据劈裂裂纹的扩展过程确定围岩发生劈裂破坏的判据,然后通过该判据判断围岩的应力状态,确定劈裂范围,并将劈裂围岩视为薄板模型。
3.
The splitting failure mechanism and anchorage effect are systematically studied from both microcosmic and macroscopic aspect.
本文采用理论分析、数值模拟和实验验证相结合的方法,从微观和宏观两个方面系统研究了高地应力条件下围岩劈裂破坏机理及其锚固效应,并将理论分析与工程实践紧密结合,主要完成了以下几个方面的工作:(1)从断裂力学的角度,系统研究了地下工程围岩中的裂纹在各种受力条件下(包括拉剪、压剪两种情况)的起裂、扩展及贯通以致最终形成劈裂裂缝的各个阶段的特征和破坏判据。
3) brittle fracture destroy
脆性断裂破坏
1.
According to the review on the destroy examples of the two earthquakes of American Northridge earthquake and Japanese Hanshin-Awaji-daishinsai,the author analyzes the causes of the brittle fracture destroy of the steel structural joints,provides measures of preventing earthquake brittle fracture destroy of the beam and column joints,thus improving the seismic reliability of the steel structure.
通过对美国北岭地震和日本阪神地震两个地震破坏实例的概述,分析了钢结构节点脆性断裂的原因,提出了梁柱节点防止地震脆性断裂破坏的措施,从而进一步提高钢结构的抗震可靠度。
4) brittle failure
脆性破坏
1.
The paper recounts the characteristics of beam-to-column connection failures of steel construction from welding quality,scale of plastic hinge and pressure distribution of beam flange and analyzes the causes of brittle failure occurrence.
从焊接质量、塑性铰范围、梁翼缘应力分布3个方面阐述钢结构梁柱节点脆性破坏的形态特征,并分析了钢结构梁柱节点发生脆性破坏的原因,且从节点连接强度和采用3种新型节点两个方面简要阐述了保证节点强度的措施,为钢结构梁柱设计与研究提供参考。
2.
Based on the discussion properties of brittle failure of frozen soil, requirements on dimension of sample for the definition of fracture toughness under linear elastic and plane strain condition are analyzed in this paper.
在讨论冻土脆性破坏特征的基础上,分析了线弹性适用条件及平面应变断裂韧度测试对试样尺寸的要求。
3.
Aiming at brittle failure of hard rock(taking limestone for example),true triaxial and acoustic emission experiments are adopted to study the mechanical characteristics,deformation and failure mechanisms,characteristics of acoustic emission(AE) activities and law of energy release.
针对硬岩的脆性破坏问题,利用真三轴和声发射(AE)试验系统研究了灰岩试样在不同应力路径和应力水平下的力学特征与变形破坏机理、AE活动特征及能量释放规律。
5) brittle fracture
脆性破坏
1.
3-D stresses in a flat slab with a crack in tension and the effect on brittle fracture;
含缺口受拉平板三维应力场及其对脆性破坏的影响
2.
The following paper introduces the conception of short column,analyzes its damage conformation,points out the part easily formed short column,and discusses its design elements,in order to help designers well do the design of short column,increase the ductility of short column,improve its deformation capacity,and avoid brittle fracture.
介绍了短柱的概念,对短柱的破坏形态进行了分析,提出了易形成短柱的部位,深入地探讨了短柱的设计要点,以帮助设计人员搞好短柱设计,从而提高短柱的延性,改善短柱的变形能力,避免脆性破坏的发生。
6) fracture failure
脆性破坏
1.
The moment resistance and ductile behavior of these specimens are analyzed, and the sensitivity to fracture failures is assessed.
分析了不同形式节点的承载性能和延性特征,总结了不同节点构造对节点脆性破坏的敏感性。
2.
The fracture failure easily occurred at the traditional steel frame s rigid joints under seismic loading.
在地震荷载作用下，传统钢框架刚性节点因为节点处焊缝应力集中明显而容易产生脆性破坏。
补充资料：脆性
分子式：
CAS号：
性质： 材料在外力作用下(如拉伸、冲击等)仅产生很小的变形即断裂破坏的性质。聚合物脆性与聚合物结构及使用条件(温度、外力作用速率等)有关，柔性链高分子聚合物脆性小，韧性好；刚性链高分子则相反。常用冲击强度或断裂伸长表征聚合物的脆性。
CAS号：
性质： 材料在外力作用下(如拉伸、冲击等)仅产生很小的变形即断裂破坏的性质。聚合物脆性与聚合物结构及使用条件(温度、外力作用速率等)有关，柔性链高分子聚合物脆性小，韧性好；刚性链高分子则相反。常用冲击强度或断裂伸长表征聚合物的脆性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条