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

^*Corresponding author for this work

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

9 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.",

keywords = "Beam, Combined primary and secondary load, Creep elastic follow-up factor, Pipe",

author = "Lee, \{Kuk Hee\} and Kim, \{Yun Jae\} and Jerng, \{Dong Wook\} and Ainsworth, \{Robert A.\} and Dave Dean",

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

year = "2013",

month = jan,

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

language = "English",

volume = "101",

pages = "12--22",

journal = "International Journal of Pressure Vessels and Piping",

issn = "0308-0161",

publisher = "Elsevier B.V.",

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TY - JOUR

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

UR - https://www.scopus.com/pages/publications/84872263388

U2 - 10.1016/j.ijpvp.2012.08.005

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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