Novel procedure for complete in-plane composite characterization using a single T-shaped specimen
Novel procedure for complete in-plane composite characterization using a single T-shaped specimen
This paper deals with the direct identification of the in-plane elastic properties of orthotropic composite plates from heterogeneous strain fields. The shape of the tested specimen is that of a T subjected to a complex stress state. As a result, the entire set of unknown parameters is directly involved in the strain and displacement responses of the sample. No exact analytical solution is available for such a geometry, and a specific strategy is used to identify the different stiffness components from the whole-field displacements measured over the tested specimen with a suitable optical method. The paper focuses mainly on the experimental aspects of the procedure, and an example of mechanical characterization of a fabric-reinforced composite plate is given.
142-149
Grédiac, M.
fa87acbc-25a4-4275-99fd-97d838e9f60e
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Surrel, Y.
59b3c429-195f-4492-b030-2dbdca8b402d
1999
Grédiac, M.
fa87acbc-25a4-4275-99fd-97d838e9f60e
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Surrel, Y.
59b3c429-195f-4492-b030-2dbdca8b402d
Grédiac, M., Pierron, F. and Surrel, Y.
(1999)
Novel procedure for complete in-plane composite characterization using a single T-shaped specimen.
Experimental Mechanics, 39 (2), .
(doi:10.1007/BF02331118).
Abstract
This paper deals with the direct identification of the in-plane elastic properties of orthotropic composite plates from heterogeneous strain fields. The shape of the tested specimen is that of a T subjected to a complex stress state. As a result, the entire set of unknown parameters is directly involved in the strain and displacement responses of the sample. No exact analytical solution is available for such a geometry, and a specific strategy is used to identify the different stiffness components from the whole-field displacements measured over the tested specimen with a suitable optical method. The paper focuses mainly on the experimental aspects of the procedure, and an example of mechanical characterization of a fabric-reinforced composite plate is given.
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Published date: 1999
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 210691
URI: http://eprints.soton.ac.uk/id/eprint/210691
ISSN: 1741-2765
PURE UUID: 44452bd6-bdac-47f8-a7b8-01846ca97f3b
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Date deposited: 15 Feb 2012 17:03
Last modified: 15 Mar 2024 03:35
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Author:
M. Grédiac
Author:
Y. Surrel
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