Applicability of net-section collapse load approach to maximum load predictions of multiple circumferential cracked pipes: Numerical study

Myeong Woo Lee, Seung Jae Kim, So Dam Lee, Jun Young Jeon, Yun-Jae Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To estimate maximum load-carrying capacity of pipes with multiple circumferential cracks, the net-section collapse load approach has been proposed. Although the proposed method has been validated against pipe test data, experimental data are quite limited due to large sets of variables to be considered. In this paper, a numerical method is proposed to generate virtual pipe test data with wide ranges of crack geometry and interspacing. To get confidence of the proposed numerical method, it is firstly applied to simulate existing 4-inch diameter schedule 80 pipes with two circumferential cracks. Predicted maximum loads agree well with experimental data. Then the proposed method is applied to generate maximum loads for wider ranges of crack geometry and loading conditions. It is found that the net-section collapse load approach works well for all cases considered.

Original languageEnglish
Title of host publicationMaterials and Fabrication
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume6A-2015
ISBN (Electronic)9780791856994, 9780791856994, 9780791856994, 9780791856994
DOIs
Publication statusPublished - 2015
EventASME 2015 Pressure Vessels and Piping Conference, PVP 2015 - Boston, United States
Duration: 2015 Jul 192015 Jul 23

Other

OtherASME 2015 Pressure Vessels and Piping Conference, PVP 2015
CountryUnited States
CityBoston
Period15/7/1915/7/23

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Lee, M. W., Kim, S. J., Lee, S. D., Jeon, J. Y., & Kim, Y-J. (2015). Applicability of net-section collapse load approach to maximum load predictions of multiple circumferential cracked pipes: Numerical study. In Materials and Fabrication (Vol. 6A-2015). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP201545437