A low cycle fatigue cracking simulation method of non-ordinary state-based peridynamics

Hao, Zhe; Pan, Li; Li, Xiaolong; Zhang, Dingguo

doi:10.1016/j.ijfatigue.2021.106638

Cited by 12 publications

(1 citation statement)

References 32 publications

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“…3 Since being proposed, the state-based peridynamic modeling has been used successfully by many researchers to investigate various solid mechanics problems, including dynamic fracture, 31,32 multiscale damage evolution, 33,34 plasticity, 35,36 those involved complex material systems, 22,31,37,38 corrosion, 39 creep, 40 and fatigue. 41 Traditional approaches to investigate dynamic fracture are mainly based on the energy release rate (ERR) obtained in the conventional continuum mechanics framework by considering the effects of multiple parameters, including material density, elastic waves, and the crack tip speeds. 42 However, such closed-form approaches may not be suitable for problems involving multiple cracks, complex geometries, and boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

A generalized model for dynamic mixed‐mode fracture via state‐based peridynamics

Mirsayar

2022

Fatigue Fract Eng Mat Struct

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A generalized model is developed to investigate dynamic crack propagation in isotropic solids under mixed‐mode I/II conditions using state‐based peridynamics. The critical stretch and the critical strain energy release rate (ERR) are related within the state‐based peridynamic framework to construct a computational model capable of capturing fracture energy of the kinked cracks. A novel formulation is presented to predict crack growth trajectory and pattern by combining the traditional expression of ERR and the peridynamic states of the crack opening and sliding displacements. The proposed model is used to predict dynamic fracture behavior in polymethyl methacrylate (PMMA) and soda‐lime glass using various test specimens, including cracked semi‐circular bending (SCB), cracked rectangular plate, and single edge‐notched tensile (SENT) specimens, and under different dynamic loading conditions. The developed model is examined against the numerical and experimental data available in the literature, and a very good agreement is observed.

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