Abstract
This paper propose estimation equations of transient C(t)-integrals for general material properties where plastic and creep stress exponent are different under load and displacement control. The new equations are made by modifying the plasticity correction term in the existing equations. The modified plasticity corrections term is expressed in terms of initial elastic-plastic and steady state creep stress fields. For validation, elastic-plastic-creep finite element analysis are performed. FE results are compared with predicted C(t) results using proposed equations. Good agreement with FE results is found even when plastic and creep stress exponents are different.
| Original language | English |
|---|---|
| Pages (from-to) | 817-824 |
| Number of pages | 8 |
| Journal | Procedia Structural Integrity |
| Volume | 2 |
| DOIs | |
| Publication status | Published - 2016 Jan 1 |
Keywords
- Crack-tip stress fields
- Elastic-plastic-creep
- Load and displacement control
- Transient C(t)-integrals
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Civil and Structural Engineering
- Materials Science(all)
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Cite this
Lee, H. S., Kim, D. J., Je, J. H., Kim, Y-J., Ainsworth, R. A., & Budden, P. J. (2016). General estimation equation of transient C(t) under load and displacement control. Procedia Structural Integrity, 2, 817-824. https://doi.org/10.1016/j.prostr.2016.06.105