Durability Analysis of Wagon Side Frame Based on the PFMA

摘要：

Based on the probabilistic fracture mechanics approach, durability test on the fine details of wagon side frame is simulated, the structural damage degree is evaluated from the four aspects of the survival probabifity, the stress amplitude, the crack formation time and economic repair limit size according to general EIFS distribution, and its economic life is predicted by combining with the stress spectrum measured in practice. The result shows that the EIFS follows the Weibull distribution and passes the K-S test, the structural damage degree can be quantitatively measured on the basis of the probabilistic model of crack exceedance, the economic life predicted tends to increase with the increase of crack exceedance probability, the rationality and validity of the analysis method is proved.

关键词： durability crack fatigue probabilistic mechanics fracture

作者: Li Wei Li Qiang Wang Ping

作者单位: Laboratory for Structural Strength Testing, China National Accreditation Service for Conformity Asse Laboratory for Structural Strength Testing, China National Accreditation Service for Conformity Asse Institute of Oceanographic Instrumentation,Shandong Academy of Sciences, Qingdao, China

会议类型: 国际会议

会议名称: 2009 International Conference on Measuring Technology and Mechatronics Automation(ICMTMA 2009)(2009年检测技术与机电自动化国际会议)

会议地点: 张家界

会议语种:英文

页码: 63-66

在线出版日期: 2009-04-11（万方平台首次上网日期，不代表论文的发表时间）