A simplification method of defects in multilayered vessels detected by acoustic emission detection

摘要：

Based on the dissection work of urea reactors,the generating and propagating characters and rules of the SCCs were concluded.Crack simplification models were build,and the calculation method of the parameters of the simplified cracks were proposed under the consideration of the natures of the acoustic emission detection method and defects contained in multilayered vessels.Furthermore,a brief verification work was taken to prove the rationality of the crack simplification.The work in this paper has a significant meaning to the safety assessment and residual life assessment of the multilayered vessels.

关键词： Multilayered vessel Stress corrosion cracking The simplified crack Acoustic emission

作者: Weiqiang Wang Huadong Liu Mingda Song Aiju Li

作者单位: School of Mechanical Engineering,Shandong University,Jinan 250061,China Engineering and Technology R Engineering and Technology Research Center for Special Equipment Safety of Shandong Province,Jinan 2 Engineering and Technology Research Center for Special Equipment Safety of Shandong Province,Jinan 2

会议类型: 国际会议

会议名称: 国际断裂力学2009年会

会议地点: 成都

会议语种:英文

页码: 587-593

在线出版日期: 2009-10-16（万方平台首次上网日期，不代表论文的发表时间）