Estimation of transient creep C(t)-integrals for SE(B) specimen under elastic-plastic-creep conditions

Han Sang Lee; Jin Ho Je; Dong Jun Kim; Yun Jae Kim

doi:10.3795/KSME-A.2015.39.9.851

Estimation of transient creep C(t)-integrals for SE(B) specimen under elastic-plastic-creep conditions

Han Sang Lee, Jin Ho Je, Dong Jun Kim, Yun Jae Kim

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

Abstract

In this paper, we estimate the time-dependent C(t) integrals under elastic-plastic-creep conditions. Finite-element (FE) transient creep analyses have been performed for single-edge-notched-bend (SEB) specimens. We investigate the effect of the initial plasticity on the transient creep by systematically varying the magnitude of the initial step load. We consider both the same stress exponent and different stress exponents in the power-law creep and plasticity to elastic-plastic-creep behavior. To estimate the C(t) integrals, we compare the FE analysis results with those obtained using formulas. In this paper, we propose a modified equation to predict the C(t) integrals for the case of creep exponents that are different from the plastic exponent.

Original language	English
Pages (from-to)	851-857
Number of pages	7
Journal	Transactions of the Korean Society of Mechanical Engineers, A
Volume	39
Issue number	9
DOIs	https://doi.org/10.3795/KSME-A.2015.39.9.851
Publication status	Published - 2015 Sept
Externally published	Yes

Keywords

C-integrals
Elastic-plastic-creep
FE Analysis
SEB Specimen
Transient Creep

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.3795/KSME-A.2015.39.9.851

Cite this

@article{9da999c472684fd2818e911bdff351c3,

title = "Estimation of transient creep C(t)-integrals for SE(B) specimen under elastic-plastic-creep conditions",

abstract = "In this paper, we estimate the time-dependent C(t) integrals under elastic-plastic-creep conditions. Finite-element (FE) transient creep analyses have been performed for single-edge-notched-bend (SEB) specimens. We investigate the effect of the initial plasticity on the transient creep by systematically varying the magnitude of the initial step load. We consider both the same stress exponent and different stress exponents in the power-law creep and plasticity to elastic-plastic-creep behavior. To estimate the C(t) integrals, we compare the FE analysis results with those obtained using formulas. In this paper, we propose a modified equation to predict the C(t) integrals for the case of creep exponents that are different from the plastic exponent.",

keywords = "C-integrals, Elastic-plastic-creep, FE Analysis, SEB Specimen, Transient Creep",

author = "Lee, {Han Sang} and Je, {Jin Ho} and Kim, {Dong Jun} and Kim, {Yun Jae}",

note = "Publisher Copyright: {\textcopyright} 2015 The Korean Society of Mechanical Engineers.",

year = "2015",

month = sep,

doi = "10.3795/KSME-A.2015.39.9.851",

language = "English",

volume = "39",

pages = "851--857",

journal = "Transactions of the Korean Society of Mechanical Engineers, A",

issn = "1226-4873",

publisher = "Korean Society of Mechanical Engineers",

number = "9",

}

TY - JOUR

T1 - Estimation of transient creep C(t)-integrals for SE(B) specimen under elastic-plastic-creep conditions

AU - Lee, Han Sang

AU - Je, Jin Ho

AU - Kim, Dong Jun

AU - Kim, Yun Jae

PY - 2015/9

Y1 - 2015/9

N2 - In this paper, we estimate the time-dependent C(t) integrals under elastic-plastic-creep conditions. Finite-element (FE) transient creep analyses have been performed for single-edge-notched-bend (SEB) specimens. We investigate the effect of the initial plasticity on the transient creep by systematically varying the magnitude of the initial step load. We consider both the same stress exponent and different stress exponents in the power-law creep and plasticity to elastic-plastic-creep behavior. To estimate the C(t) integrals, we compare the FE analysis results with those obtained using formulas. In this paper, we propose a modified equation to predict the C(t) integrals for the case of creep exponents that are different from the plastic exponent.

AB - In this paper, we estimate the time-dependent C(t) integrals under elastic-plastic-creep conditions. Finite-element (FE) transient creep analyses have been performed for single-edge-notched-bend (SEB) specimens. We investigate the effect of the initial plasticity on the transient creep by systematically varying the magnitude of the initial step load. We consider both the same stress exponent and different stress exponents in the power-law creep and plasticity to elastic-plastic-creep behavior. To estimate the C(t) integrals, we compare the FE analysis results with those obtained using formulas. In this paper, we propose a modified equation to predict the C(t) integrals for the case of creep exponents that are different from the plastic exponent.

KW - C-integrals

KW - Elastic-plastic-creep

KW - FE Analysis

KW - SEB Specimen

KW - Transient Creep

UR - http://www.scopus.com/inward/record.url?scp=84964510319&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84964510319&partnerID=8YFLogxK

U2 - 10.3795/KSME-A.2015.39.9.851

DO - 10.3795/KSME-A.2015.39.9.851

M3 - Article

AN - SCOPUS:84964510319

SN - 1226-4873

VL - 39

SP - 851

EP - 857

JO - Transactions of the Korean Society of Mechanical Engineers, A

JF - Transactions of the Korean Society of Mechanical Engineers, A

IS - 9

ER -

Estimation of transient creep C(t)-integrals for SE(B) specimen under elastic-plastic-creep conditions

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this