General estimation equation of transient C(t) under load and displacement control

Han Sang Lee; Dong Jun Kim; Jin Ho Je; Yun Jae Kim; Robert A. Ainsworth; Peter J. Budden

doi:10.1016/j.prostr.2016.06.105

General estimation equation of transient C(t) under load and displacement control

Han Sang Lee, Dong Jun Kim, Jin Ho Je, Yun Jae Kim, Robert A. Ainsworth, Peter J. Budden

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

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	https://doi.org/10.1016/j.prostr.2016.06.105
Publication status	Published - 2016

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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10.1016/j.prostr.2016.06.105

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@article{45b169cb399247098ded13125770c538,

title = "General estimation equation of transient C(t) under load and displacement control",

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.",

keywords = "Crack-tip stress fields, Elastic-plastic-creep, Load and displacement control, Transient C(t)-integrals",

author = "Lee, {Han Sang} and Kim, {Dong Jun} and Je, {Jin Ho} and Kim, {Yun Jae} and Ainsworth, {Robert A.} and Budden, {Peter J.}",

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). Publisher Copyright: Copyright {\textcopyright} 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.",

year = "2016",

doi = "10.1016/j.prostr.2016.06.105",

language = "English",

volume = "2",

pages = "817--824",

journal = "Procedia Structural Integrity",

issn = "2452-3216",

publisher = "Elsevier BV",

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T1 - General estimation equation of transient C(t) under load and displacement control

AU - Lee, Han Sang

AU - Kim, Dong Jun

AU - Je, Jin Ho

AU - Kim, Yun Jae

AU - Ainsworth, Robert A.

AU - Budden, Peter J.

N1 - 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). Publisher Copyright: Copyright © 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

KW - Crack-tip stress fields

KW - Elastic-plastic-creep

KW - Load and displacement control

KW - Transient C(t)-integrals

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DO - 10.1016/j.prostr.2016.06.105

M3 - Article

AN - SCOPUS:84991593484

VL - 2

SP - 817

EP - 824

JO - Procedia Structural Integrity

JF - Procedia Structural Integrity

SN - 2452-3216

ER -

General estimation equation of transient C(t) under load and displacement control

Abstract

Keywords

ASJC Scopus subject areas

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