陶瓷材料可靠性分析中的统计断裂强度理论(2)其它统计断裂强度理论  

Statistical Theories of the Fracture Strength for the Reliability Analysis of Ceramic Materials H—Other Statistical Theories of the Fracture Strength

作　　者：许崇海[1] 王毅[1] 程强[1] 丁文亮 

机构地区：[1]山东轻工业学院机电工程系,山东济南250100 [2]东营市河口区城建委,山东东营257000

出　　处：《材料科学与工程》2001年第4期151-154,共4页Materials Science and Engineering

摘　　要：评述了当前陶瓷材料统计断裂强度理论的发展概况 ,分析了两种建立强度分布方程的统计方法 ,探讨了它们用于陶瓷材料可靠性分析和陶瓷部件设计的可行性。并基于对缺陷的尺度分布和方位分布以及裂纹扩展路径不规则性的统一考虑 。The current development of statistical theories of the fracture strength for the reliability analysis of ceramic materials has been comprehensively reviewed.Statistical methods for the building of strength distribution functions are analyzed,and the feasibility of their applications in the reliability analysis of ceramic materials and the design of ceramic components is discussed.On the basis of the comprehensive considerations of the flaw size distribution and the flaw orentation distribtuion as well as the irregularity of the crack propagation path,statistical expression of the fracture strength of ceramic materials under general stress state is analyzed theoretically.

关 键 词：陶瓷材料 可靠性 应力 统计断裂强度理论 边形 强度分布 

分 类 号：TQ174.1[化学工程—陶瓷工业]