Lamb wave-based probabilistic fatigue life prediction for riveted lap joints

摘要：

　　This study presents a Lamb wave-based probabilistic fatigue life prediction for riveted lap joints.First, a brief introduction is given for the experiment of Lamb wave-based damage detection.Three damage sensitive features (correlation coefficient, amplitude change and phase change) are employed to correlate the fatigue crack size with Lamb wave signal.Then the probability of detection (POD) method is used to couple the actual crack size with the model predictions using Lamb wave signal.Considering the uncertainties of the initial crack size and crack growth parameters, Bayesian method and Markov Chain Monte Carlo (MCMC) simulation are applied to obtain the probabilistic fatigue life.In order to verify the reliability of the proposed probabilistic fatigue life prediction procedure, one set of experimental data is used for validation purpose.

关键词： riveted lap joints Lamb wave method POD model probabilistic fatigue life

作者: Dengjiang Wang Jingjing He Weifang Zhang

作者单位: School of Reliability and System Engineering, Beihang University, Beijing, China

会议类型: 国际会议

会议名称: the International Conference Vibroengineering-2014

会议地点: 贵阳

会议语种:英文

页码: 235-240

在线出版日期: 2014-11-07（万方平台首次上网日期，不代表论文的发表时间）