AE Feature Analysis on Welding Crack Defects of HG70 Steel Used by Truck Crane

摘要：

In present paper, using Acoustic Emission (AE) as a ultrasonic technique, Welding crack has been investigated on the HG70 steel used by truck crane during three-point bending test was carried out. The study shows that the activity of AE increases greatly during the welding crack initiates and propagates, and the distributing range of AE characteristic parameters can be fixed. AE signals of welding crack initiation and expansion are typical sudden signals which have a different spectrum energy distribution range with that of unstable crack propagation.

关键词： HG70 steel Welding crack Acoustic Emission.

作者: Yantao Dou Xiaoli Xu Wei Wang Siqin Pang

作者单位: Beijing Institute of Technology, Beijing, P.R. China Beijing Information Science and Technology University, Beijing, P.R. China College of Engineering, China Agricultural University, Beijing, P.R. China

会议类型: 国际会议

会议名称: The 4th IFIP International on Computer and Computing Technologies in Agriculture and the 4th Symposium on Development of Rural Information(第四届国际计算机及计算机技术在农业中的应用研讨会暨第四届中国农业信息化发展论坛 CCTA 2010)

会议地点: 南昌

会议语种:英文

页码: 78-88

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）