Choi, Jae-Boong2006-07-282006-07-2819971997http://hdl.handle.net/10012/150application/pdf11625293 bytesapplication/pdfenCopyright: 1997, Choi, Jae-Boong. All rights reserved.Harvested from Collections CanadaPlastic collapse of circumferential surface defects in pipeline materialsDoctoral Thesis