General time-dependent C(t) and J(t) estimation equations for elastic-plastic-creep fracture mechanics analysis

H. S. Lee; J. H. Je; Y. J. Kim; R. A. Ainsworth; P. J. Budden

doi:10.1111/ffe.12418

General time-dependent C(t) and J(t) estimation equations for elastic-plastic-creep fracture mechanics analysis

H. S. Lee
, J. H. Je
, Y. J. Kim
, R. A. Ainsworth
, P. J. Budden

研究成果: Article › 査読

3 被引用数 (Scopus)

抄録

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.

本文言語	English
ページ（範囲）	1092-1104
ページ数	13
ジャーナル	Fatigue and Fracture of Engineering Materials and Structures
巻	39
号	9
DOI	https://doi.org/10.1111/ffe.12418
出版ステータス	Published - 2016 9月 1
外部発表	はい

ASJC Scopus subject areas

材料科学一般
材料力学
機械工学

文献へのアクセス

10.1111/ffe.12418

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引用スタイル

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title = "General time-dependent C(t) and J(t) estimation equations for elastic-plastic-creep fracture mechanics analysis",

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.",

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author = "Lee, \{H. S.\} and Je, \{J. H.\} and Kim, \{Y. J.\} and Ainsworth, \{R. A.\} and Budden, \{P. J.\}",

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AU - Lee, H. S.

AU - Je, J. H.

AU - Kim, Y. J.

AU - Ainsworth, R. A.

AU - Budden, P. J.

PY - 2016/9/1

Y1 - 2016/9/1

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

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JO - Fatigue and Fracture of Engineering Materials and Structures

JF - Fatigue and Fracture of Engineering Materials and Structures

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General time-dependent C(t) and J(t) estimation equations for elastic-plastic-creep fracture mechanics analysis

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