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Materials 2016, 9(12), 977; doi:10.3390/ma9120977

Modelling of Granular Fracture in Polycrystalline Materials Using Ordinary State-Based Peridynamics

Department of Naval Architecture, Ocean and Marine Engineering, University of Strathclyde, Glasgow G4 0LZ, UK
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Author to whom correspondence should be addressed.
Academic Editor: Timon Rabczuk
Received: 1 September 2016 / Revised: 7 November 2016 / Accepted: 22 November 2016 / Published: 2 December 2016
(This article belongs to the Special Issue Multiscale Methods and Application to Computational Materials Design)

Abstract

An ordinary state-based peridynamic formulation is developed to analyse cubic polycrystalline materials for the first time in the literature. This new approach has the advantage that no constraint condition is imposed on material constants as opposed to bond-based peridynamic theory. The formulation is validated by first considering static analyses and comparing the displacement fields obtained from the finite element method and ordinary state-based peridynamics. Then, dynamic analysis is performed to investigate the effect of grain boundary strength, crystal size, and discretization size on fracture behaviour and fracture morphology. View Full-Text
Keywords: polycrystalline materials; ordinary state-based peridynamics; transgranular fracture; intergranular fracture polycrystalline materials; ordinary state-based peridynamics; transgranular fracture; intergranular fracture
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhu, N.; De Meo, D.; Oterkus, E. Modelling of Granular Fracture in Polycrystalline Materials Using Ordinary State-Based Peridynamics. Materials 2016, 9, 977.

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