文献类型：期刊文献

英文题名：Effect of Pipe Bend Configuration on Guided Waves-Based Defects Detection: An Experimental Study

作者：Ni, Jing[1];Zhou, Shaoping[1];Zhang, Pugen[1];Li, Yong[1]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：138

期号：2

外文期刊名：JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME

收录：;EI(收录号：20154201379708);WOS:【SCI-EXPANDED(收录号:WOS:000371746600003)】；

基金：The authors are grateful for the support of Natural Science Foundation of China (No. 51175178).

语种：英文

外文关键词：Crack detection - Damage detection - Pipe joints - Pipeline bends - Pressure vessels - Finite element method - Nondestructive examination - Ultrasonic testing

摘要：Ultrasonic guided waves is one of the most effective nondestructive testing techniques, which has been successfully applied for damage detection and evaluation of piping components. However, research about defects detection for pipelines with multiple bends is still limited. In this paper, effect of pipe bend arrangement on guided waves-based defect detection is investigated by experimental method, in which different configurations including space-Z type, U type, and plane-Z type are considered, respectively. Finite element (FE) simulation is used to explore the propagation behaviors of axisymmetric L (0, 2) mode in different bend configurations. On this basis, the detection sensitivity for different crack locations is experimentally investigated. Simulation and experiment results reveal that feature of guided waves propagation across the first and the second bend is totally different, and the defect detection sensitivity in the second bend is different from that in the first bend.