J-resistance curve testing using modified normalization method for SENT specimens

被引：2
|
作者：
Liu Z. [1 ]
Wang X. [1 ,2 ]
Chen X. [1 ]
机构：
[1] School of Chemical Engineering & Technology, Tianjin University, Tianjin
[2] Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, K1S 5B6, ON
来源：
Key Engineering Materials | 2019年 / 795卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Fracture testing; J-resistance curve; API X80 pipeline steel; Normalization method; SENT specimen;
D O I：
10.4028/www.scientific.net/KEM.795.367
中图分类号：
学科分类号：
摘要：
A modified normalization (NM) method to determine J-R curves using clamped single edge notched tension (SENT) specimens was proposed. To validate and quantify the modified normalization method, the J-R curves of X80 pipeline steel obtained by normalization (NM) method are compared with those determined by the unloading compliance (UC) method for SENT specimens. The comparison shows that modified NM method is obvious better than unmodified NM method for SENT specimens. The modified NM method has great agreements with UC method, and is a valid and cost-effective tool to be applied to obtain J-R curves of API X80 steel using SENT specimens with shallow cracked depth to deep cracked depth. © 2019 Trans Tech Publications Ltd, Switzerland.
引用
收藏
页码：367 / 374
页数：7
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