Creep elastic follow-up factors under combined primary and secondary stresses

Kuk Hee Lee; Yun Jae Kim; Dong Wook Jerng; Robert A. Ainsworth; Dave Dean

doi:10.1016/j.ijpvp.2012.08.005

Creep elastic follow-up factors under combined primary and secondary stresses

Kuk Hee Lee, Yun Jae Kim, Dong Wook Jerng, Robert A. Ainsworth, Dave Dean

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

7 Citations (Scopus)

Abstract

This paper presents elastic-creep finite element analyses for smooth and notched plane strain beams and axi-symmetric pipes subject to combined primary and secondary stresses. The relative magnitudes of the primary and secondary stresses are systematically varied. Elastic follow-up factors, which quantify the effect of the primary stress on creep relaxation behaviour of the secondary stress, are extracted as a function of the relative magnitude of the primary and secondary stresses. It is found that elastic follow-up factors due to the secondary stress are affected by the magnitude of the primary stress, and the presence of the primary stress can significantly increase elastic follow-up factors.

Original language	English
Pages (from-to)	12-22
Number of pages	11
Journal	International Journal of Pressure Vessels and Piping
Volume	101
DOIs	https://doi.org/10.1016/j.ijpvp.2012.08.005
Publication status	Published - 2013 Jan

Bibliographical note

Funding Information:
This research is supported by Engineering Research Center (No. 2009-0063170 ) and Grant (No. 2012M2B2A9A02029354 ), funded by the National Research Foundation .

Keywords

Beam
Combined primary and secondary load
Creep elastic follow-up factor
Pipe

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/j.ijpvp.2012.08.005

Cite this

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title = "Creep elastic follow-up factors under combined primary and secondary stresses",

abstract = "This paper presents elastic-creep finite element analyses for smooth and notched plane strain beams and axi-symmetric pipes subject to combined primary and secondary stresses. The relative magnitudes of the primary and secondary stresses are systematically varied. Elastic follow-up factors, which quantify the effect of the primary stress on creep relaxation behaviour of the secondary stress, are extracted as a function of the relative magnitude of the primary and secondary stresses. It is found that elastic follow-up factors due to the secondary stress are affected by the magnitude of the primary stress, and the presence of the primary stress can significantly increase elastic follow-up factors.",

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note = "Funding Information: This research is supported by Engineering Research Center (No. 2009-0063170 ) and Grant (No. 2012M2B2A9A02029354 ), funded by the National Research Foundation . ",

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doi = "10.1016/j.ijpvp.2012.08.005",

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T1 - Creep elastic follow-up factors under combined primary and secondary stresses

AU - Lee, Kuk Hee

AU - Kim, Yun Jae

AU - Jerng, Dong Wook

AU - Ainsworth, Robert A.

AU - Dean, Dave

N1 - Funding Information: This research is supported by Engineering Research Center (No. 2009-0063170 ) and Grant (No. 2012M2B2A9A02029354 ), funded by the National Research Foundation .

PY - 2013/1

Y1 - 2013/1

N2 - This paper presents elastic-creep finite element analyses for smooth and notched plane strain beams and axi-symmetric pipes subject to combined primary and secondary stresses. The relative magnitudes of the primary and secondary stresses are systematically varied. Elastic follow-up factors, which quantify the effect of the primary stress on creep relaxation behaviour of the secondary stress, are extracted as a function of the relative magnitude of the primary and secondary stresses. It is found that elastic follow-up factors due to the secondary stress are affected by the magnitude of the primary stress, and the presence of the primary stress can significantly increase elastic follow-up factors.

AB - This paper presents elastic-creep finite element analyses for smooth and notched plane strain beams and axi-symmetric pipes subject to combined primary and secondary stresses. The relative magnitudes of the primary and secondary stresses are systematically varied. Elastic follow-up factors, which quantify the effect of the primary stress on creep relaxation behaviour of the secondary stress, are extracted as a function of the relative magnitude of the primary and secondary stresses. It is found that elastic follow-up factors due to the secondary stress are affected by the magnitude of the primary stress, and the presence of the primary stress can significantly increase elastic follow-up factors.

KW - Beam

KW - Combined primary and secondary load

KW - Creep elastic follow-up factor

KW - Pipe

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DO - 10.1016/j.ijpvp.2012.08.005

M3 - Article

AN - SCOPUS:84872263388

SN - 0308-0161

VL - 101

SP - 12

EP - 22

JO - International Journal of Pressure Vessels and Piping

JF - International Journal of Pressure Vessels and Piping

ER -

Creep elastic follow-up factors under combined primary and secondary stresses

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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