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The Meaning, Selection, and Use of the Peridynamic Horizon and its Relation to Crack Branching in Brittle Materials

  • Letters in Fracture and Micromechanics
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Abstract

This note discusses the peridynamic horizon (the nonlocal region around a material point), its role, and practical use in modelling. The objective is to eliminate some misunderstandings and misconceptions regarding the peridynamic horizon. An example of crack branching in a nominally brittle material (homalite) is addressed and we show that crack branching takes place without wave interaction. We explain under what conditions the crack propagation speed depends on the horizon size and the role of incident stress waves on this speed.

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Authors and Affiliations

  1. Department of Mechanical and Materials Engineering, Univeristy of Nebraska-Lincoln, Lincoln, Nebraska, 68588-0526, USA

    Florin Bobaru & Wenke Hu

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  1. Florin Bobaru
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  2. Wenke Hu
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Correspondence to Florin Bobaru.

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Bobaru, F., Hu, W. The Meaning, Selection, and Use of the Peridynamic Horizon and its Relation to Crack Branching in Brittle Materials. Int J Fract 176, 215–222 (2012). https://doi.org/10.1007/s10704-012-9725-z

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  • DOI: https://doi.org/10.1007/s10704-012-9725-z

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