Effect of tensile properties on time-dependent C(t) and J(t) integrals in elastic-plastic-creep FE analysis

So Dam Lee; Han Sang Lee; Yun Jae Kim; Robert A. Ainsworth; David W. Dean

doi:10.1016/j.ijpvp.2016.08.004

Effect of tensile properties on time-dependent C(t) and J(t) integrals in elastic-plastic-creep FE analysis

So Dam Lee, Han Sang Lee, Yun Jae Kim, Robert A. Ainsworth, David W. Dean

The University of Manchester

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

Abstract

This technical note presents the effect of elastic-plastic properties on calculated time-dependent C(t) and J(t) values. This is investigated via systematic elastic-plastic-creep finite element (FE) analysis. Three different stress-strain curves are used, having essentially the same plastic properties at large strains but different tensile data near the 0.2% proof (yield) strength. It is found that the plastic property in stress-strain curve affects the FE C(t) values only at short times (within approximately 20% of the redistribution time). The plastic property affects the initial J values at time t = 0 but not the rate of change of J(t) with time.

Original language	English
Pages (from-to)	171-178
Number of pages	8
Journal	International Journal of Pressure Vessels and Piping
Volume	146
Early online date	3 Sept 2016
DOIs	https://doi.org/10.1016/j.ijpvp.2016.08.004
Publication status	Published - 1 Oct 2016

Keywords

C(t) integral
Elastic-plastic-creep
J(t) integral

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10.1016/j.ijpvp.2016.08.004

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title = "Effect of tensile properties on time-dependent C(t) and J(t) integrals in elastic-plastic-creep FE analysis",

abstract = "This technical note presents the effect of elastic-plastic properties on calculated time-dependent C(t) and J(t) values. This is investigated via systematic elastic-plastic-creep finite element (FE) analysis. Three different stress-strain curves are used, having essentially the same plastic properties at large strains but different tensile data near the 0.2% proof (yield) strength. It is found that the plastic property in stress-strain curve affects the FE C(t) values only at short times (within approximately 20% of the redistribution time). The plastic property affects the initial J values at time t = 0 but not the rate of change of J(t) with time.",

keywords = "C(t) integral, Elastic-plastic-creep, J(t) integral",

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T1 - Effect of tensile properties on time-dependent C(t) and J(t) integrals in elastic-plastic-creep FE analysis

AU - Lee, So Dam

AU - Lee, Han Sang

AU - Kim, Yun Jae

AU - Ainsworth, Robert A.

AU - Dean, David W.

PY - 2016/10/1

Y1 - 2016/10/1

N2 - This technical note presents the effect of elastic-plastic properties on calculated time-dependent C(t) and J(t) values. This is investigated via systematic elastic-plastic-creep finite element (FE) analysis. Three different stress-strain curves are used, having essentially the same plastic properties at large strains but different tensile data near the 0.2% proof (yield) strength. It is found that the plastic property in stress-strain curve affects the FE C(t) values only at short times (within approximately 20% of the redistribution time). The plastic property affects the initial J values at time t = 0 but not the rate of change of J(t) with time.

AB - This technical note presents the effect of elastic-plastic properties on calculated time-dependent C(t) and J(t) values. This is investigated via systematic elastic-plastic-creep finite element (FE) analysis. Three different stress-strain curves are used, having essentially the same plastic properties at large strains but different tensile data near the 0.2% proof (yield) strength. It is found that the plastic property in stress-strain curve affects the FE C(t) values only at short times (within approximately 20% of the redistribution time). The plastic property affects the initial J values at time t = 0 but not the rate of change of J(t) with time.

KW - C(t) integral

KW - Elastic-plastic-creep

KW - J(t) integral

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M3 - Article

AN - SCOPUS:84989816490

SN - 0308-0161

VL - 146

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JO - International Journal of Pressure Vessels and Piping

JF - International Journal of Pressure Vessels and Piping

ER -

Effect of tensile properties on time-dependent C(t) and J(t) integrals in elastic-plastic-creep FE analysis

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