期刊
ENGINEERING FRACTURE MECHANICS
卷 124, 期 -, 页码 18-29出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2014.04.031
关键词
Drop weight tear test; Instrumented impact testing; Crack tip opening angle; Pipeline steel
类别
资金
- Baosteel [Y12ECEC03Y]
A regression based algorithm, load-line displacement method has been developed from the Martinelli-Venzi ductile fracture model to measure the crack-tip-opening-angle (CTOA) of high strength and toughness pipeline steels. Key-curve method is employed on the instrument force-displacement curve to estimate the dynamic cracking behavior of a standard pressed-notch DWTT specimen, also conveniently to identify the stable fracture propagation. From the above laboratory procedure, the critical CTOA is found to be constant over the steady-state stage, independence of the thickness in the range 19-31 mm as studied. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据