Numerical simulation and experimental validation of ductile tearing in A106 Gr. B piping system under simulated seismic loading conditions

Hyun Suk Nam, Gyo Geun Youn, Jong Min Lee, Hune Tae Kim, Yun-Jae Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This work presents finite element ductile tearing simulation and experimental validation of a piping system with a circumferential surface cracked (SC) A106 Gr. B pipe under simulated seismic loading condition. The damage model for simulation is based on the multiaxial fracture strain energy. The parameters in the damage model are determined from tensile and fracture toughness test results under the monotonic loading condition. For the system dynamic time history analysis, the Rayleigh damping model is employed. For cyclic constitutive equations, two models were considered to confirm its sensitivity. Predicted crack initiation and ductile tearing agree well with the experimental results.

Keywords

  • Ductile crack growth simulation
  • finite element damage analysis
  • multiaxial fracture strain energy
  • piping system test
  • simulated seismic loading

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering

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