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Disorder is good for you: the influence of local disorder on strain localization and ductility of strain softening materials

Tüzes, Dániel and Ispánovity, Péter Dusán and Zaiser, Michael (2017) Disorder is good for you: the influence of local disorder on strain localization and ductility of strain softening materials. INTERNATIONAL JOURNAL OF FRACTURE, 205 (2). pp. 139-150. ISSN 0376-9429

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Abstract

We formulate a generic concept model for the deformation of a locally disordered, macroscopically homogeneous material which undergoes irreversible strain softening during plastic deformation. We investigate the influence of the degree of microstructural heterogeneity and disorder on strain localization (formation of a macroscopic shear band) in such materials. It is shown that increased microstructural heterogeneity delays strain localization and leads to an increase of the plastic regime in the macroscopic stress–strain curves. The evolving strain localization patterns are characterized. © 2017 Springer Science+Business Media Dordrecht

Item Type: Article
Uncontrolled Keywords: Strain-softening materials; Strain localizations; nocv1; Microstructural heterogeneity; Macroscopic shear bands; Inhomogeneous materials; Homogeneous materials; Microstructure; mechanical properties; Probability and statistics; Numerical algorithms; Microstructures; Inhomogeneous material; FRACTURE; Condensed Matter - Soft Condensed Matter; Condensed Matter - Materials Science; SOLIDS; ALLOYS; DYNAMICS; SIMULATIONS; DEFORMATION; PLASTIC-FLOW; METALLIC GLASSES
Subjects: Q Science / természettudomány > QC Physics / fizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 05 Oct 2017 12:26
Last Modified: 05 Oct 2017 12:26
URI: http://real.mtak.hu/id/eprint/65093

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