Fracture parameter analysis of flat shells under out-of-plane loading using ordinary state-based peridynamics

Ming-Jyun Dai, Satoyuki Tanaka, Tinh Quoc Bui, Selda Oterkus, Erkan Oterkus

Research output: Contribution to journalArticlepeer-review

Abstract

The present paper is devoted to numerical investigation on fracture parameters of cracked shells subjected to out-of-plane loading using ordinary state-based peridynamics (PD). The nonlocal deformation gradient and equivalent domain integral are introduced to evaluate fracture parameters. To reduce the surface effect and obtain more accurate results, the energy method and volume correction algorithm are considered. Meanwhile, the adaptive dynamic relaxation technique is employed to obtain steady-state solutions. From comparisons between PD results and reference solutions, the proposed PD shell model successfully evaluates fracture parameters in both single- and mixed-mode loading conditions.
Original languageEnglish
Article number107560
JournalEngineering Fracture Mechanics
Volume244
Early online date21 Jan 2021
DOIs
Publication statusPublished - 1 Mar 2021

Keywords

  • peridynamics
  • nonlocal deformation gradient
  • equivalent domain integral
  • fracture parameters

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