文献类型：期刊文献

英文题名：A review of creep analysis and design under multi-axial stress states

作者：Yao, Hua-Tang[1]; Xuan, Fu-Zhen[1]; Wang, Zhengdong[1]; Tu, Shan-Tung[1]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2007

卷号：237

期号：18

起止页码：1969

外文期刊名：NUCLEAR ENGINEERING AND DESIGN

收录：;EI(收录号：20073510788961);WOS:【SCI-EXPANDED(收录号:WOS:000249809700001)】；

语种：英文

外文关键词：Numerical methods - Problem solving - Stress analysis - Thermal effects

摘要：The existence of multi-axial states of stress cannot be avoided in elevated temperature components. It is essential to understand the associated failure mechanisms and to predict the lifetime in practice. Although metal creep has been studied for about 100 years, many problems are still unsolved, in particular for those involving multi-axial stresses. In this work, a state-of-the-art review of creep analysis and engineering design is carried out, with particular emphasis on the effect of multi-axial stresses. The existing theories and creep design approaches are grouped into three categories, i.e., the classical plastic theory (CPT) based approach, the cavity growth mechanism (CGM) based approach and the continuum damage mechanics (CDM) based approach. Following above arrangements, the constitutive equations and design criteria are addressed. In the end, challenges on the precise description of the multi-axial creep behavior and then improving the strength criteria in engineering design are presented. (c) 2007 Elsevier B.V. All rights reserved.