Proposal of new combination criterion for pipe with circumferential multiple cracks based on ductile failure simulation

Myeong Woo Lee; Kunio Hasegawa; Yun Jae Kim

doi:10.1115/PVP201884822

Proposal of new combination criterion for pipe with circumferential multiple cracks based on ductile failure simulation

Myeong Woo Lee, Kunio Hasegawa, Yun Jae Kim

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

1 Citation (Scopus)

Abstract

In this paper, the combination rule for circumferential multiple-cracked pipe assessment is investigated using finite element damage analysis. The FE damage analysis based on the stress-modified fracture strain model is validated against limited fracture test data of two circumferential surface cracked pipes. Then systematic parametric study is performed using FE damage analysis for symmetrical surface cracked pipes. Failure bending stresses are calculated using the combination rule and the net-section collapse load approach for single crack provided in ASME BPV Code. It is found that predicted failure bending stress using the combination rule might be non-conservative when the distance between two cracks is short. To overcome the problem, a new combination criterion based on crack dimensions is proposed and compared with numerical data.

Original language	English
Title of host publication	Codes and Standards
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791851586
DOIs	https://doi.org/10.1115/PVP201884822
Publication status	Published - 2018
Event	ASME 2018 Pressure Vessels and Piping Conference, PVP 2018 - Prague, Czech Republic Duration: 2018 Jul 15 → 2018 Jul 20

Publication series

Name	American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume	1A-2018
ISSN (Print)	0277-027X

Other

Other	ASME 2018 Pressure Vessels and Piping Conference, PVP 2018
Country/Territory	Czech Republic
City	Prague
Period	18/7/15 → 18/7/20

Bibliographical note

Funding Information:
This research was supported by National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT and Future Planning. (NRF-2016M2A8A1952771, NRF-2017R1A2B2009759)

Publisher Copyright:
Copyright © 2018 ASME.

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.1115/PVP201884822

Cite this

Lee, M. W., Hasegawa, K., & Kim, Y. J. (2018). Proposal of new combination criterion for pipe with circumferential multiple cracks based on ductile failure simulation. In Codes and Standards (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 1A-2018). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP201884822

Proposal of new combination criterion for pipe with circumferential multiple cracks based on ductile failure simulation. / Lee, Myeong Woo; Hasegawa, Kunio; Kim, Yun Jae.
Codes and Standards. American Society of Mechanical Engineers (ASME), 2018. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 1A-2018).

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

Lee, MW, Hasegawa, K & Kim, YJ 2018, Proposal of new combination criterion for pipe with circumferential multiple cracks based on ductile failure simulation. in Codes and Standards. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, vol. 1A-2018, American Society of Mechanical Engineers (ASME), ASME 2018 Pressure Vessels and Piping Conference, PVP 2018, Prague, Czech Republic, 18/7/15. https://doi.org/10.1115/PVP201884822

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abstract = "In this paper, the combination rule for circumferential multiple-cracked pipe assessment is investigated using finite element damage analysis. The FE damage analysis based on the stress-modified fracture strain model is validated against limited fracture test data of two circumferential surface cracked pipes. Then systematic parametric study is performed using FE damage analysis for symmetrical surface cracked pipes. Failure bending stresses are calculated using the combination rule and the net-section collapse load approach for single crack provided in ASME BPV Code. It is found that predicted failure bending stress using the combination rule might be non-conservative when the distance between two cracks is short. To overcome the problem, a new combination criterion based on crack dimensions is proposed and compared with numerical data.",

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AB - In this paper, the combination rule for circumferential multiple-cracked pipe assessment is investigated using finite element damage analysis. The FE damage analysis based on the stress-modified fracture strain model is validated against limited fracture test data of two circumferential surface cracked pipes. Then systematic parametric study is performed using FE damage analysis for symmetrical surface cracked pipes. Failure bending stresses are calculated using the combination rule and the net-section collapse load approach for single crack provided in ASME BPV Code. It is found that predicted failure bending stress using the combination rule might be non-conservative when the distance between two cracks is short. To overcome the problem, a new combination criterion based on crack dimensions is proposed and compared with numerical data.

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Proposal of new combination criterion for pipe with circumferential multiple cracks based on ductile failure simulation

Abstract

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