Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses with temperature gradients

Chang Sik Oh; Yun Jae Kim; Kee Bong Yoon

doi:10.1016/j.ijpvp.2010.03.002

Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses with temperature gradients

Chang Sik Oh, Yun Jae Kim, Kee Bong Yoon

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

3 Citations (Scopus)

Abstract

Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses are investigated, incorporating temperature (and resulting the yield strength) gradient through the tube thickness. Based on analytical investigations, explicit equations for various stress regimes representing elastic-plastic behaviours are obtained. In the limiting case of no temperature (and yield strength) gradient through the thickness, proposed equations recover those for the well-known Bree diagram. The proposed results are then validated against the results from full-cyclic elastic-plastic finite element analysis.

Original language	English
Pages (from-to)	245-253
Number of pages	9
Journal	International Journal of Pressure Vessels and Piping
Volume	87
Issue number	5
DOIs	https://doi.org/10.1016/j.ijpvp.2010.03.002
Publication status	Published - 2010 May 1
Externally published	Yes

Keywords

Cyclic thermal stresses
Elastic-plastic behaviour
Pressurised pipe
Ratchetting
Reverse plasticity
Shakedown
Temperature and strength gradient

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.ijpvp.2010.03.002

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title = "Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses with temperature gradients",

abstract = "Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses are investigated, incorporating temperature (and resulting the yield strength) gradient through the tube thickness. Based on analytical investigations, explicit equations for various stress regimes representing elastic-plastic behaviours are obtained. In the limiting case of no temperature (and yield strength) gradient through the thickness, proposed equations recover those for the well-known Bree diagram. The proposed results are then validated against the results from full-cyclic elastic-plastic finite element analysis.",

keywords = "Cyclic thermal stresses, Elastic-plastic behaviour, Pressurised pipe, Ratchetting, Reverse plasticity, Shakedown, Temperature and strength gradient",

author = "Oh, {Chang Sik} and Kim, {Yun Jae} and Yoon, {Kee Bong}",

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T1 - Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses with temperature gradients

AU - Oh, Chang Sik

AU - Kim, Yun Jae

AU - Yoon, Kee Bong

PY - 2010/5/1

Y1 - 2010/5/1

N2 - Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses are investigated, incorporating temperature (and resulting the yield strength) gradient through the tube thickness. Based on analytical investigations, explicit equations for various stress regimes representing elastic-plastic behaviours are obtained. In the limiting case of no temperature (and yield strength) gradient through the thickness, proposed equations recover those for the well-known Bree diagram. The proposed results are then validated against the results from full-cyclic elastic-plastic finite element analysis.

AB - Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses are investigated, incorporating temperature (and resulting the yield strength) gradient through the tube thickness. Based on analytical investigations, explicit equations for various stress regimes representing elastic-plastic behaviours are obtained. In the limiting case of no temperature (and yield strength) gradient through the thickness, proposed equations recover those for the well-known Bree diagram. The proposed results are then validated against the results from full-cyclic elastic-plastic finite element analysis.

KW - Cyclic thermal stresses

KW - Elastic-plastic behaviour

KW - Pressurised pipe

KW - Ratchetting

KW - Reverse plasticity

KW - Shakedown

KW - Temperature and strength gradient

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