Ductile tearing simulation of Battelle pipe test using simplified stress-modified fracture strain concept

H. W. Ryu, K. D. Bae, Yun-Jae Kim, J. J. Han, J. S. Kim, P. J. Budden

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

In this paper, numerical ductile tearing simulation results are compared with six circumferential through-wall and surface cracked pipes made of two materials (SA-333 Gr. 6 and A106 Gr. B carbon steels), performed at Battelle. For simulation, a model using a simplified fracture strain model is employed, by analysing tensile data of the material. By comparing experimental J-R data with FE simulation results, the damage model dependent on the element size is determined based on the ductility exhaustion concept. The model is used to simulate ductile tearing behaviour of six circumferential through-wall and surface cracked pipes. In all cases, simulated results agree well with experimental load, crack length and crack mouth opening displacement versus load line displacement data.

Original languageEnglish
JournalFatigue and Fracture of Engineering Materials and Structures
DOIs
Publication statusAccepted/In press - 2016

Keywords

  • Circumferential cracked pipe test simulation
  • Finite element damage analysis
  • Stress-modified fracture strain

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

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