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

Dai, Ming-Jyun and Tanaka, Satoyuki and Bui, Tinh Quoc and Oterkus, Selda and Oterkus, Erkan (2021) Fracture parameter analysis of flat shells under out-of-plane loading using ordinary state-based peridynamics. Engineering Fracture Mechanics, 244. 107560. ISSN 0013-7944

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    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.

    ORCID iDs

    Dai, Ming-Jyun, Tanaka, Satoyuki, Bui, Tinh Quoc, Oterkus, Selda ORCID logoORCID: https://orcid.org/0000-0003-0474-0279 and Oterkus, Erkan ORCID logoORCID: https://orcid.org/0000-0002-4614-7214;