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Effect of tensile properties on time-dependent C(t) and J(t) integrals in elastic-plastic-creep FE analysis
- Issue Date
- 10월-2016
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Elastic-plastic-creep; C(t) integral; J(t) integral
- Citation
- INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, v.146, pp.171 - 178
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
- Volume
- 146
- Start Page
- 171
- End Page
- 178
- ISSN
- 0308-0161
- 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. (C) 2016 Elsevier Ltd. All rights reserved.
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