Finite element based multi-scale ductile failure simulation of full-scale pipes with a circumferential crack in a low carbon steel

Jae Jun Han, Kyung Dong Bae, Yun-Jae Kim, Jong Hyun Kim, Nak Hyun Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper describes multi-scale based ductile fracture simulation using finite element (FE) damage analysis. The maximum and crack initiation loads of cracked components were predicted using proposed virtual testing method. To apply the local approach criteria for ductile fracture, stress-modified fracture strain model was adopted as the damage criteria with modified calibration technique that only requires tensile and fracture toughness test data. Element-size-dependent critical damage model is also introduced to apply the proposed ductile fracture simulation to large-scale components. The results of the simulation were compared with those of the tests on SA333 Gr. 6 full-scale pipes at 288°C, performed by the Battelle Memorial Institute.

Original languageEnglish
Pages (from-to)727-734
Number of pages8
JournalTransactions of the Korean Society of Mechanical Engineers, A
Volume38
Issue number7
DOIs
Publication statusPublished - 2014

Keywords

  • Damage simulation
  • Ductile fracture
  • Element-size-dependent critical damage model
  • Finite element analysis
  • Full-scale pipes
  • Virtual testing method

ASJC Scopus subject areas

  • Mechanical Engineering

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