Abstract
This technical note presents the effect of elastic-plastic properties on calculated time-dependent C(t) and J(t) values. This is investigated via systematic elastic-plastic-creep finite element (FE) analysis. Three different stress-strain curves are used, having essentially the same plastic properties at large strains but different tensile data near the 0.2% proof (yield) strength. It is found that the plastic property in stress-strain curve affects the FE C(t) values only at short times (within approximately 20% of the redistribution time). The plastic property affects the initial J values at time t = 0 but not the rate of change of J(t) with time.
| Original language | English |
|---|---|
| Pages (from-to) | 171-178 |
| Number of pages | 8 |
| Journal | International Journal of Pressure Vessels and Piping |
| Volume | 146 |
| DOIs | |
| Publication status | Published - 2016 Oct 1 |
Bibliographical note
Funding Information:This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning . ( NRF-2013M2A7A1076396, NRF-2013M2B2B1075733 ). This paper is published by permission of EDF Energy Nuclear Generation Ltd .
Publisher Copyright:
© 2016
Keywords
- C(t) integral
- Elastic-plastic-creep
- J(t) integral
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
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