四川大学学报：工程科学版2012，Vol.44Issue(4)：204-208,5.
基于缺陷失效仿真路径压力容器的安全裕度与剩余寿命研究
Study on the Residual Life and the Safety Margin of Pressure Vessel Based on the Defect Failure Sinmlation Path
摘要
Abstract
It is difficult to obtain critical values of pressure vessel defect cracks accurately. In order to solve this problem, the safety e- valuation simulation system for the failure rate and paths of the crack on the aerodynamic pressure vessel was used to find the inflection point of the failure rate in safety critical region and the threshold of aN. The ray method or parallel method did not reflect She real level of dynamic security, but the defects along the failure path which reaches safety critical distance and this distance really reflected the re- maining number of cyclic fatigue defects, and a new theory criterion for pressure vessel residual life prediction was established.关键词
压力容器/安全评定/失效仿真/安全裕度/剩余寿命Key words
pressure vessel/safety assessment/failure simulation/safety margin/residual life分类
机械工程引用本文复制引用
龙伟,宋恩奎,林思建..基于缺陷失效仿真路径压力容器的安全裕度与剩余寿命研究[J].四川大学学报：工程科学版,2012,44(4):204-208,5.基金项目
国家自然科学基金资助项目 （）
