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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effects of specimen geometry and loading mode on crack growth resistance curves of a high-strength pipeline girth weld

Full text
Author(s):
Mathias, Leonardo L. S. [1] ; Sarzosa, Diego F. B. [1] ; Ruggieri, Claudio [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Dept Naval Architecture & Ocean Engn, BR-05508030 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING; v. 111, p. 106-119, NOV-DEC 2013.
Web of Science Citations: 34
Abstract

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 shallow crack bend SE(B) specimens with a weld centerline notch to determine the crack growth resistance curves based upon the unloading compliance (UC) method using the single specimen technique. Recently developed compliance functions and eta-factors applicable for SE(T) and SE(B) fracture specimens with homogeneous material and overmatched welds are introduced to determine crack growth resistance data from laboratory measurements of load-displacement records. (C) 2013 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 09/54229-3 - Structural integrity of circumferential welded joints in pipelines and risers
Grantee:Claudio Ruggieri
Support type: Regular Research Grants