Detection of Protective Coating Disbonds in Pipe Using Circumferential Guided Waves

摘要：

Disbonded protective coatings greatly increase the corrosion rates in pipeline. A new guidedwave technology is developed for the detection of disbonds. Theoretical dispersion curves are generated for shear horizontal waves propagating around the circumference of a pipe. Three parameters are identified for the detection of disbonded coatings. Disbond detection is demonstrated experimentally using a 20 diameter pipe with a hot-applied coal-tar coating.Results show that there is potential for disbond sizing in addition to detection.

关键词： Circumferential guided waves Coating Disbond Pipe SH-waves

作者: Jason K. Van Velsor Joseph L. Rose FBS, Inc. J. Bruce Nestleroth

作者单位: Pennsylvania State University Department of Engineering Science & Mechanics 212 Earth & Engineering Pennsylvania State University Dept. of Eng. Science & Mechanics 212 Earth & Eng. Science Bldg.Univer 143 Hawbaker Industrial Dr.Suite 102 State College, PA 16803, US Battelle Memorial Institute 505 King Avenue Columbus, OH 43201, US

会议类型: 国际会议

会议名称: 第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)

会议地点: 上海

会议语种:英文

页码: 1516-1521

在线出版日期: 2008-10-25（万方平台首次上网日期，不代表论文的发表时间）