Abstract
This paper presents equations for estimating the crack tip characterizing parameters C(t) and J(t), for general elastic-plastic-creep conditions where the power-law creep and plasticity stress exponents differ, by modifying the plasticity correction term in published equations. The plasticity correction term in the newly proposed equations is given in terms of the initial elastic-plastic and steady-state creep stress fields. The predicted C(t) and J(t) results are validated by comparison with systematic elastic-plastic-creep FE results. Good agreement with the FE results is found.
| Original language | English |
|---|---|
| Journal | Fatigue and Fracture of Engineering Materials and Structures |
| DOIs | |
| Publication status | Accepted/In press - 2016 |
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Keywords
- Crack-tip stress fields
- Elastic-plastic-creep
- Plasticity correction term
- Time-dependent C(t) and J(t) estimation equations
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Science(all)
Cite this
General time-dependent C(t) and J(t) estimation equations for elastic-plastic-creep fracture mechanics analysis. / Lee, H. S.; Je, J. H.; Kim, Yun-Jae; Ainsworth, R. A.; Budden, P. J.
In: Fatigue and Fracture of Engineering Materials and Structures, 2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - General time-dependent C(t) and J(t) estimation equations for elastic-plastic-creep fracture mechanics analysis
AU - Lee, H. S.
AU - Je, J. H.
AU - Kim, Yun-Jae
AU - Ainsworth, R. A.
AU - Budden, P. J.
PY - 2016
Y1 - 2016
N2 - This paper presents equations for estimating the crack tip characterizing parameters C(t) and J(t), for general elastic-plastic-creep conditions where the power-law creep and plasticity stress exponents differ, by modifying the plasticity correction term in published equations. The plasticity correction term in the newly proposed equations is given in terms of the initial elastic-plastic and steady-state creep stress fields. The predicted C(t) and J(t) results are validated by comparison with systematic elastic-plastic-creep FE results. Good agreement with the FE results is found.
AB - This paper presents equations for estimating the crack tip characterizing parameters C(t) and J(t), for general elastic-plastic-creep conditions where the power-law creep and plasticity stress exponents differ, by modifying the plasticity correction term in published equations. The plasticity correction term in the newly proposed equations is given in terms of the initial elastic-plastic and steady-state creep stress fields. The predicted C(t) and J(t) results are validated by comparison with systematic elastic-plastic-creep FE results. Good agreement with the FE results is found.
KW - Crack-tip stress fields
KW - Elastic-plastic-creep
KW - Plasticity correction term
KW - Time-dependent C(t) and J(t) estimation equations
UR - http://www.scopus.com/inward/record.url?scp=84959421958&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84959421958&partnerID=8YFLogxK
U2 - 10.1111/ffe.12418
DO - 10.1111/ffe.12418
M3 - Article
JO - Fatigue and Fracture of Engineering Materials and Structures
JF - Fatigue and Fracture of Engineering Materials and Structures
SN - 8756-758X
ER -