Effects of Specimen Geometry and Mode Loading on Crack Growth Resistance Curves of X80 Pipeline Girth Welds
This work presents an investigation of the ductile tearing properties for a girth weld made of an API 5L X80 pipeline steel using experimentally measured crack growth resistance curves. Use of these materials is motivated by the increasing demand in the number of applications for manufacturing high strength pipes for the oil and gas industry including marine applications and steel catenary risers. Testing of the pipeline girth welds employed side-grooved, clamped SE (T) specimens and 3P bend SE(B) specimens with a weld centerline notch and varying crack sizes to determine the crack growth resistance curves based upon the unloading compliance (UC) method using a single specimen technique. Recently developed compliance functions and η -factors applicable for SE (T ) and SE(B) fracture specimens are introduced to determine crack growth resistance data from laboratory measurements of load-displacement records.
J-Resistance Curves Ductile Fracture SE(T) Specimen SE(B) Specimen Crack Growth
Claudio Ruggieri Leonardo L.S.Mathias
Department of Naval Architecture and Ocean Engineering,University of S(a)o Paulo,05508-030,Brazil
国际会议
北京
英文
1-9
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）