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Open Access item From Brittle to Ductile Fracture in Disordered Materials

Authors:Picallo, Clara B.
López, Juan M.
Zapperi, Stefano
Alava, Mikko J.
Issue Date:2010
Publisher:American Physical Society
Citation:Physical Review Letters 105(15): 155502 (2010)
Abstract:We introduce a lattice model able to describe damage and yielding in heterogeneous materials ranging from brittle to ductile ones. Ductile fracture surfaces, obtained when the system breaks once the strain is completely localized, are shown to correspond to minimum energy surfaces. The similarity of the resulting fracture paths to the limits of brittle fracture or minimum energy surfaces is quantified. The model exhibits a smooth transition from brittleness to ductility. The dynamics of yielding exhibits avalanches with a power-law distribution.
Description:4 páginas, 4 figuras.-- PACS numbers: 62.20.F-, 05.40.-a, 61.43.-j, 62.20.M-
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevLett.105.155502
URI:http://hdl.handle.net/10261/46057
ISSN:0031-9007
E-ISSNmetadata.dc.identifier.doi = DOI:1079-7114
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Appears in Collections:(IFCA) Artículos

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