Mixed-mode stress intensity factors evaluation of flat shells under in-plane loading employing ordinary state-based peridynamics

A recently developed peridynamic (PD) shell model based on the ordinary state-based theory is adopted to evaluate stress intensity factors (SIFs) under in-plane loading. Strain and components are obtained by introducing differential operator. In order mixed-mode SIFs, domain form of interaction integral employed. The adaptive dynamic relaxation technique utilized obtain steady-state solutions, energy method applied reduce PD surface effect. Several numerical examples considered, including single- fracture problems. All results compared with reference demonstrate accuracy effectiveness proposed approach. present paper aims examine performance in linear elastic mechanics provides an effective approach for SIFs evaluation.