摘要
本文根据结构可靠性理论，提出了一种基于结构疲劳动态可靠性分析的损伤容限分析方法，给出结构疲劳裂纹随机扩展过程中疲劳寿命分布和结构疲劳可靠性的表达式。在给定与疲劳寿命有关的各参数条件下求得动态可靠性曲线，从而在结构设计中根据可靠性要求确定或选择设计参数。
A method of structure damage tolerance analysis based on the structural fatigue reliability analysis is presented in the present paper. The stochastic distribution of the fatigue life in the process of the fatigue cracks growing in the structure and the relevant representation of structure reliability is given. Under the condition of the statistical parameters related to fatigue life of the structure, such as the initial crack length, the material toughness used, and the load acting on the structure being given, the dynamic reliability curves are obtained. Thus, the damage tolerance and the other design parameters can be determined according to the request of reliability.
出处
《中国造船》
EI
CSCD
北大核心
1997年第2期46-52,共7页
Shipbuilding of China
关键词
船舶
结构设计
损伤容限分析
动态可靠性
Ship structural design
Damage tolerance analysis
Dynamic reliability
