Estimation of the v-factor for circumferentially cracked pipes under combined thermal and mechanical stresses using a strain-based failure assessment diagram

Chang Young Oh; Yun Jae Kim; Dong Il Ryu; P. J. Budden; R. A. Ainsworth

doi:10.1115/PVP2011-57599

Estimation of the v-factor for circumferentially cracked pipes under combined thermal and mechanical stresses using a strain-based failure assessment diagram

Chang Young Oh, Yun Jae Kim, Dong Il Ryu, P. J. Budden, R. A. Ainsworth

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

This paper presents finite element solutions for elastic-plastic J for circumferentially cracked pipes under combined mechanical and thermal loads in terms of the V/V° factor used within a strain-based failure assessment diagram. In this study, 3-dimensional finite element analyses are conducted to calculate the V-factor under combined mechanical and thermal load. It is found that estimation of V/V° is sensitive to the method used for its evaluation. For larger thermal stresses, currently proposed estimation methods are overly conservative.

Original language	English
Title of host publication	ASME 2011 Pressure Vessels and Piping Conference, PVP 2011
Pages	1001-1008
Number of pages	8
DOIs	https://doi.org/10.1115/PVP2011-57599
Publication status	Published - 2011
Event	ASME 2011 Pressure Vessels and Piping Conference, PVP 2011 - Baltimore, MD, United States Duration: 2011 Jul 17 → 2011 Jul 21

Publication series

Name	American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume	3
ISSN (Print)	0277-027X

Other

Other	ASME 2011 Pressure Vessels and Piping Conference, PVP 2011
Country/Territory	United States
City	Baltimore, MD
Period	11/7/17 → 11/7/21

Keywords

Failure assessment diagram
Secondary stress
Strain-based method

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.1115/PVP2011-57599

Cite this

Oh, C. Y., Kim, Y. J., Ryu, D. I., Budden, P. J., & Ainsworth, R. A. (2011). Estimation of the v-factor for circumferentially cracked pipes under combined thermal and mechanical stresses using a strain-based failure assessment diagram. In ASME 2011 Pressure Vessels and Piping Conference, PVP 2011 (pp. 1001-1008). (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 3). https://doi.org/10.1115/PVP2011-57599

Estimation of the v-factor for circumferentially cracked pipes under combined thermal and mechanical stresses using a strain-based failure assessment diagram. / Oh, Chang Young; Kim, Yun Jae; Ryu, Dong Il et al.
ASME 2011 Pressure Vessels and Piping Conference, PVP 2011. 2011. p. 1001-1008 (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Oh, CY, Kim, YJ, Ryu, DI, Budden, PJ & Ainsworth, RA 2011, Estimation of the v-factor for circumferentially cracked pipes under combined thermal and mechanical stresses using a strain-based failure assessment diagram. in ASME 2011 Pressure Vessels and Piping Conference, PVP 2011. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, vol. 3, pp. 1001-1008, ASME 2011 Pressure Vessels and Piping Conference, PVP 2011, Baltimore, MD, United States, 11/7/17. https://doi.org/10.1115/PVP2011-57599

Oh CY, Kim YJ, Ryu DI, Budden PJ, Ainsworth RA. Estimation of the v-factor for circumferentially cracked pipes under combined thermal and mechanical stresses using a strain-based failure assessment diagram. In ASME 2011 Pressure Vessels and Piping Conference, PVP 2011. 2011. p. 1001-1008. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP). doi: 10.1115/PVP2011-57599

Oh, Chang Young ; Kim, Yun Jae ; Ryu, Dong Il et al. / Estimation of the v-factor for circumferentially cracked pipes under combined thermal and mechanical stresses using a strain-based failure assessment diagram. ASME 2011 Pressure Vessels and Piping Conference, PVP 2011. 2011. pp. 1001-1008 (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP).

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abstract = "This paper presents finite element solutions for elastic-plastic J for circumferentially cracked pipes under combined mechanical and thermal loads in terms of the V/V° factor used within a strain-based failure assessment diagram. In this study, 3-dimensional finite element analyses are conducted to calculate the V-factor under combined mechanical and thermal load. It is found that estimation of V/V° is sensitive to the method used for its evaluation. For larger thermal stresses, currently proposed estimation methods are overly conservative.",

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AB - This paper presents finite element solutions for elastic-plastic J for circumferentially cracked pipes under combined mechanical and thermal loads in terms of the V/V° factor used within a strain-based failure assessment diagram. In this study, 3-dimensional finite element analyses are conducted to calculate the V-factor under combined mechanical and thermal load. It is found that estimation of V/V° is sensitive to the method used for its evaluation. For larger thermal stresses, currently proposed estimation methods are overly conservative.

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Estimation of the v-factor for circumferentially cracked pipes under combined thermal and mechanical stresses using a strain-based failure assessment diagram

Abstract

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Keywords

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