文献类型：期刊文献

英文题名：In-plane and out-of-plane unified constraint-dependent creep crack growth rate of 316H steel

作者：Ma, H. S.[1];Wang, G. Z.[1];Liu, S.[1];Tu, S. T.[1];Xuan, F. Z.[1]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China

年份：2016

卷号：155

起止页码：88

外文期刊名：ENGINEERING FRACTURE MECHANICS

收录：;EI(收录号：20160501879314);WOS:【SCI-EXPANDED(收录号:WOS:000371354400006)】；

基金：This work was financially supported by the Projects of the National Natural Science Foundation of China (51375165, 51575184, 51325504).

语种：英文

外文关键词：In-plane creep constraint; Out-of-plane creep constraint; Creep crack growth rate; Specimen geometry; Equivalent creep strain

摘要：The unified characterization parameter A(c) of in-plane and out-of-plane creep constraints along three-dimensional crack front in different specimen geometries has been analyzed. Based on the parameter A(c) and the experimental creep crack growth rate data of different specimen geometries in the literature, the in-plane and out-of-plane unified constraint-dependent creep crack growth rate equation of 316H steel has been obtained. The predicted creep crack growth rate by using the equation for each specimen agrees well with the experimental data. Based on the two-parameter C* - A(c) concept, the equation may be used in creep crack growth life assessments incorporating in-plane and out-of-plane constraint effects. (C) 2016 Elsevier Ltd. All rights reserved.