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.
Original language | English |
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Pages (from-to) | 336-346 |
Number of pages | 11 |
Journal | Journal of Strain Analysis for Engineering Design |
Volume | 51 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2016 Jul 1 |
Keywords
- C (t) integral
- Crack
- elastic follow-up
- secondary stress
- transient creep
ASJC Scopus subject areas
- Modelling and Simulation
- Mechanics of Materials
- Mechanical Engineering
- Applied Mathematics