Ductile failure simulation of bending pipes with multiple circumferential surface cracks using an element-size dependent damage model

Jong Hyun Kim, Nak Hyun Kim, Yun-Jae Kim, Kunio Hasegawa, Katsumasa Miyazaki

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

1 Citation (Scopus)

Abstract

The purpose of this study is to simulate ductile failure of bending pipes with multiple circumferential surface cracks using an element-size dependent damage model. This method is based on the stress-modified fracture strain damage model with stress reduction technique proposed previously by the authors [9,10]. For validation, simulated results using the proposed method are compared with experimental data of Type 304SS pipes performed by Japanese researchers [19]. To calibrate the proposed method, pipe test data with a single surface crack were compared with simulated results using the damage model. Based on the calibrated damage model, the pipe tests with multiple circumferential surface cracks were simulated. The bending moment at both crack penetration and coalescence were calculated from the FE damage analysis. These results were compared with the experimental results. In spite of its simplicity, the results show that proposed method can simulate ductile failure behavior of bending pipes with multiple circumferential surface cracks.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Pages401-407
Number of pages7
Volume3
DOIs
Publication statusPublished - 2012 Dec 1
EventASME 2012 Pressure Vessels and Piping Conference, PVP 2012 - Toronto, ON, Canada
Duration: 2012 Jul 152012 Jul 19

Other

OtherASME 2012 Pressure Vessels and Piping Conference, PVP 2012
CountryCanada
CityToronto, ON
Period12/7/1512/7/19

ASJC Scopus subject areas

  • Mechanical Engineering

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  • Cite this

    Kim, J. H., Kim, N. H., Kim, Y-J., Hasegawa, K., & Miyazaki, K. (2012). Ductile failure simulation of bending pipes with multiple circumferential surface cracks using an element-size dependent damage model. In American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP (Vol. 3, pp. 401-407) https://doi.org/10.1115/PVP2012-78305