Peridynamic analysis of dynamic fracture: influence of peridynamic horizon, dimensionality and specimen size
نویسندگان
چکیده
Abstract In peridynamic models for fracture, the dissipated fracture energy is regularized over a non-local region denoted as horizon. This paper investigates influence of this parameter on dynamic process in brittle solids, using two well three dimensional simulations propagation notched plate loading cases. The predicted crack speed various scenarios initially stored energy, also known velocity toughening behavior characteristics surface topology obtained different regimes 3D computational are compared with experimentally observed and surfaces Polymethyl Methacrylate (PMMA) specimens. addition, we investigate specimen size simulations. strengths relationship from sizes Linear Elastic Fracture Mechanics (LEFM) effect results experiments, respectively.
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ژورنال
عنوان ژورنال: Computational Mechanics
سال: 2021
ISSN: ['0178-7675', '1432-0924']
DOI: https://doi.org/10.1007/s00466-021-02017-1