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GPU-based simulations of fracture in idealized brick and mortar composites

GPU-based simulations of fracture in idealized brick and mortar composites
GPU-based simulations of fracture in idealized brick and mortar composites
Stiff ceramic platelets (or bricks) that are aligned and bonded to a second ductile phase with low volume fraction (mortar) are a promising pathway to produce stiff, high-toughness composites. For certain ranges of constituent properties, including those of some synthetic analogs to nacre, one can demonstrate that the deformation is dominated by relative brick motions. This paper describes simulations of fracture that explicitly track the motions of individual rigid bricks in an idealized microstructure; cohesive tractions acting between the bricks introduce elastic, plastic and rupture behaviors. Results are presented for the stresses and damage near macroscopic cracks with different brick orientations relative to the loading orientation. The anisotropic macroscopic initiation toughness is computed for small-scale yielding conditions and is shown to be independent of specimen geometry and loading configuration. The results are shown to be in agreement with previously published experiments on synthetic nacre. (C) 2015 Elsevier Ltd. All rights reserved.
0022-5096
68-85
Pro, J. William
10019bdd-c91b-45a7-b649-5f29b413abe0
Kwei Lim, Rone
75c805f6-cce3-417e-ab38-41cd0cc1ffff
Petzold, Linda R.
cf15c9c7-413a-430a-83c9-a6209fb2bb6e
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Begley, Matthew R.
9f4e52bc-507a-4ef6-910f-bd11d25c2209
Pro, J. William
10019bdd-c91b-45a7-b649-5f29b413abe0
Kwei Lim, Rone
75c805f6-cce3-417e-ab38-41cd0cc1ffff
Petzold, Linda R.
cf15c9c7-413a-430a-83c9-a6209fb2bb6e
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Begley, Matthew R.
9f4e52bc-507a-4ef6-910f-bd11d25c2209

Pro, J. William, Kwei Lim, Rone, Petzold, Linda R., Utz, Marcel and Begley, Matthew R. (2015) GPU-based simulations of fracture in idealized brick and mortar composites. Journal of the Mechanics and Physics of Solids, 80, 68-85. (doi:10.1016/j.jmps.2015.03.011).

Record type: Article

Abstract

Stiff ceramic platelets (or bricks) that are aligned and bonded to a second ductile phase with low volume fraction (mortar) are a promising pathway to produce stiff, high-toughness composites. For certain ranges of constituent properties, including those of some synthetic analogs to nacre, one can demonstrate that the deformation is dominated by relative brick motions. This paper describes simulations of fracture that explicitly track the motions of individual rigid bricks in an idealized microstructure; cohesive tractions acting between the bricks introduce elastic, plastic and rupture behaviors. Results are presented for the stresses and damage near macroscopic cracks with different brick orientations relative to the loading orientation. The anisotropic macroscopic initiation toughness is computed for small-scale yielding conditions and is shown to be independent of specimen geometry and loading configuration. The results are shown to be in agreement with previously published experiments on synthetic nacre. (C) 2015 Elsevier Ltd. All rights reserved.

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Accepted/In Press date: 31 March 2015
e-pub ahead of print date: 2 April 2015
Published date: July 2015
Organisations: Magnetic Resonance

Identifiers

Local EPrints ID: 396254
URI: https://eprints.soton.ac.uk/id/eprint/396254
ISSN: 0022-5096
PURE UUID: 36a3fe0f-0ac3-4f76-92fe-be68c2591702
ORCID for Marcel Utz: ORCID iD orcid.org/0000-0003-2274-9672

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Date deposited: 07 Jun 2016 11:25
Last modified: 14 Jul 2018 00:30

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Contributors

Author: J. William Pro
Author: Rone Kwei Lim
Author: Linda R. Petzold
Author: Marcel Utz ORCID iD
Author: Matthew R. Begley

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