Scaling of strength and ductility in bioinspired brick and mortar composites
Scaling of strength and ductility in bioinspired brick and mortar composites
This paper provides scaling relationships between constituent properties and the uniaxial tensile response of synthetic “brick and mortar” composite materials inspired by nacre. The macroscopic strength and ductility (work of fracture) are predicted in terms of the brick properties (size, strength, and layout) and interface cohesive properties (e.g., maximum shear and normal stresses and separations). The results illustrate the trade-off between increasing strength and decreasing ductility with the increasing aspect ratio of the bricks. The models can be used to identify optimum mortar properties that maximize toughness for a given brick strength.
193701
Wilbrink, David V.
f66e39d2-e64d-43fa-9077-72c2e452b967
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Ritchie, Robert O.
aceaba6e-2424-4eee-ab05-bf81e85eb936
Begley, Matthew R.
9f4e52bc-507a-4ef6-910f-bd11d25c2209
November 2010
Wilbrink, David V.
f66e39d2-e64d-43fa-9077-72c2e452b967
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Ritchie, Robert O.
aceaba6e-2424-4eee-ab05-bf81e85eb936
Begley, Matthew R.
9f4e52bc-507a-4ef6-910f-bd11d25c2209
Wilbrink, David V., Utz, Marcel, Ritchie, Robert O. and Begley, Matthew R.
(2010)
Scaling of strength and ductility in bioinspired brick and mortar composites.
Applied Physics Letters, 97 (19), .
(doi:10.1063/1.3499294).
Abstract
This paper provides scaling relationships between constituent properties and the uniaxial tensile response of synthetic “brick and mortar” composite materials inspired by nacre. The macroscopic strength and ductility (work of fracture) are predicted in terms of the brick properties (size, strength, and layout) and interface cohesive properties (e.g., maximum shear and normal stresses and separations). The results illustrate the trade-off between increasing strength and decreasing ductility with the increasing aspect ratio of the bricks. The models can be used to identify optimum mortar properties that maximize toughness for a given brick strength.
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e-pub ahead of print date: 11 November 2010
Published date: November 2010
Organisations:
Magnetic Resonance
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Local EPrints ID: 354810
URI: http://eprints.soton.ac.uk/id/eprint/354810
ISSN: 0003-6951
PURE UUID: bad426dd-f37e-4d93-86d6-be471d9693e4
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Date deposited: 23 Jul 2013 09:31
Last modified: 15 Mar 2024 03:44
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Author:
David V. Wilbrink
Author:
Robert O. Ritchie
Author:
Matthew R. Begley
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