Element and crack geometry sensitivities of finite element analysis results of linear elastic stress intensity factor for surface cracked straight pipes

Dongil Ryu; Kyung Dong Bae; Jin Ho Je; Joong Hyok An; Yun Jae Kim; Tae Kwang Song; Yong Beum Kim

doi:10.3795/KSME-A.2013.37.4.521

Element and crack geometry sensitivities of finite element analysis results of linear elastic stress intensity factor for surface cracked straight pipes

Dongil Ryu, Kyung Dong Bae, Jin Ho Je, Joong Hyok An, Yun Jae Kim, Tae Kwang Song, Yong Beum Kim

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

Abstract

This study provides the elastic stress intensity factors, K, for circumferential and longitudinal surface cracked straight pipes under single or combined loads of internal pressure, bending, and torsion based on three-dimensional (3D) finite element (FE) analyses. FE results are compared with two different types of defect assessment codes (API-579-1 and RCC-MR A16) to prove the accuracy of the FE results and the differences between the codes. Through the 3D FE analysis, it is found that the stress intensity factors are sensitive to the number of elements, which they were believed to not be sensitive to because of path independence. Differences were also found between the FE analysis results for crack defining methods and the results obtained by two different types of defect assessment codes.

Original language	English
Pages (from-to)	521-527
Number of pages	7
Journal	Transactions of the Korean Society of Mechanical Engineers, A
Volume	37
Issue number	4
DOIs	https://doi.org/10.3795/KSME-A.2013.37.4.521
Publication status	Published - 2013 Apr
Externally published	Yes

Keywords

Finite element analysis
Straight pipe
Stress intensity factor
Surface crack

ASJC Scopus subject areas

Mechanical Engineering

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10.3795/KSME-A.2013.37.4.521

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Element and crack geometry sensitivities of finite element analysis results of linear elastic stress intensity factor for surface cracked straight pipes. / Ryu, Dongil; Bae, Kyung Dong; Je, Jin Ho et al.
In: Transactions of the Korean Society of Mechanical Engineers, A, Vol. 37, No. 4, 04.2013, p. 521-527.

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

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title = "Element and crack geometry sensitivities of finite element analysis results of linear elastic stress intensity factor for surface cracked straight pipes",

abstract = "This study provides the elastic stress intensity factors, K, for circumferential and longitudinal surface cracked straight pipes under single or combined loads of internal pressure, bending, and torsion based on three-dimensional (3D) finite element (FE) analyses. FE results are compared with two different types of defect assessment codes (API-579-1 and RCC-MR A16) to prove the accuracy of the FE results and the differences between the codes. Through the 3D FE analysis, it is found that the stress intensity factors are sensitive to the number of elements, which they were believed to not be sensitive to because of path independence. Differences were also found between the FE analysis results for crack defining methods and the results obtained by two different types of defect assessment codes.",

keywords = "Finite element analysis, Straight pipe, Stress intensity factor, Surface crack",

author = "Dongil Ryu and Bae, {Kyung Dong} and Je, {Jin Ho} and An, {Joong Hyok} and Kim, {Yun Jae} and Song, {Tae Kwang} and Kim, {Yong Beum}",

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T1 - Element and crack geometry sensitivities of finite element analysis results of linear elastic stress intensity factor for surface cracked straight pipes

AU - Ryu, Dongil

AU - Bae, Kyung Dong

AU - Je, Jin Ho

AU - An, Joong Hyok

AU - Kim, Yun Jae

AU - Song, Tae Kwang

AU - Kim, Yong Beum

PY - 2013/4

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N2 - This study provides the elastic stress intensity factors, K, for circumferential and longitudinal surface cracked straight pipes under single or combined loads of internal pressure, bending, and torsion based on three-dimensional (3D) finite element (FE) analyses. FE results are compared with two different types of defect assessment codes (API-579-1 and RCC-MR A16) to prove the accuracy of the FE results and the differences between the codes. Through the 3D FE analysis, it is found that the stress intensity factors are sensitive to the number of elements, which they were believed to not be sensitive to because of path independence. Differences were also found between the FE analysis results for crack defining methods and the results obtained by two different types of defect assessment codes.

AB - This study provides the elastic stress intensity factors, K, for circumferential and longitudinal surface cracked straight pipes under single or combined loads of internal pressure, bending, and torsion based on three-dimensional (3D) finite element (FE) analyses. FE results are compared with two different types of defect assessment codes (API-579-1 and RCC-MR A16) to prove the accuracy of the FE results and the differences between the codes. Through the 3D FE analysis, it is found that the stress intensity factors are sensitive to the number of elements, which they were believed to not be sensitive to because of path independence. Differences were also found between the FE analysis results for crack defining methods and the results obtained by two different types of defect assessment codes.

KW - Finite element analysis

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KW - Surface crack

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Element and crack geometry sensitivities of finite element analysis results of linear elastic stress intensity factor for surface cracked straight pipes

Abstract

Keywords

ASJC Scopus subject areas

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