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A simple method to estimate elastic follow-up factors for transient creep parameter C(t) under secondary stress
- Authors
- Je, Jinho; Lee, Kukhee; Kim, Yunjae; Jerng, Dongwook
- Issue Date
- Jul-2016
- Publisher
- SAGE PUBLICATIONS LTD
- Keywords
- Crack; C(t) integral; elastic follow-up; secondary stress; transient creep
- Citation
- JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN, v.51, no.5, pp 336 - 346
- Pages
- 11
- Journal Title
- JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN
- Volume
- 51
- Number
- 5
- Start Page
- 336
- End Page
- 346
- ISSN
- 0309-3247
2041-3130
- Abstract
- In this article, a semi-analytical method to estimate elastic follow-up factor as input to estimate the transient creep C(t) parameter under secondary loading is presented and validated against finite element results for a cracked two-bar structure under constant displacement loading. Predicted values of C(t) agree well with the finite element results for both elastic-creep cases and for elastic-plastic cases with the same creep and plastic hardening exponents. For elastic-plastic-creep cases with different creep and plastic hardening exponents, the proposed method gives good predictions at long time but can under-or over-predict C(t) at short time.
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Collections - College of Engineering > School of Energy System Engineering > 1. Journal Articles
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