期刊
ENGINEERING FRACTURE MECHANICS
卷 110, 期 -, 页码 12-22出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2013.07.015
关键词
Digital Image Correlation; SENT; Tearing resistance
类别
资金
- IWT (Agency for innovation by science and technology) [SB-091512, SB-093512]
- FWO (Research Foundation Flanders) [1.1.880.09.N.00, 1.1.880.11.N.01, 1.5.247.08.N.00]
The experimental evaluation of fracture toughness of linepipe steels is increasingly performed through Single Edge Notched Tensile (SENT) testing. The notch constraint in these specimens closely matches that in pipes. This article explores the possibilities of using full field deformation and strain measurements during SENT testing. Based on the obtained deformation fields, the Crack Tip Opening Displacement (CTOD) has successfully been evaluated. In addition, the deformation near the cracked ligament allows estimating the amount of ductile crack extension for shallow notched specimens. The combination of both allows constructing resistance curves for the tested materials. (C) 2013 Elsevier Ltd. All rights reserved.
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