Numerical study on longitudinal distance effect on failure stress of non-aligned twin cracked pipe

Thanh Long Nguyen; Myeong Woo Lee; Kunio Hasegawa; Yun Jae Kim

doi:10.1115/PVP201884838

Numerical study on longitudinal distance effect on failure stress of non-aligned twin cracked pipe

Thanh Long Nguyen, Myeong Woo Lee, Kunio Hasegawa, Yun Jae Kim

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

Abstract

In this study, the effect of longitudinal distance H between non-aligned twin cracks is investigated using finite element damage analysis. The FE damage analysis based on the stress-modified fracture strain model is used to calculate the failure stress of non-aligned twin cracked pipe. Parametric study on the axial distance H between non-aligned twin cracks with various crack depths and lengths were conducted and compared with predictions using the alignment rules and the net-section collapse load approach for single crack provided in ASME Code. It is shown that the trend of the predicted collapse bending stresses for the non-aligned twin cracked pipes using FE damage analysis are different from the ones using the alignment rule.

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/PVP201884838
Publication status	Published - 2018 Jan 1
Externally published	Yes
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

Conference

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

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.1115/PVP201884838

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Cite this

Nguyen, T. L., Lee, M. W., Hasegawa, K., & Kim, Y. J. (2018). Numerical study on longitudinal distance effect on failure stress of non-aligned twin cracked pipe. 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/PVP201884838

Numerical study on longitudinal distance effect on failure stress of non-aligned twin cracked pipe. / Nguyen, Thanh Long; 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

Nguyen, TL, Lee, MW, Hasegawa, K & Kim, YJ 2018, Numerical study on longitudinal distance effect on failure stress of non-aligned twin cracked pipe. 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/PVP201884838

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