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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
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.
1741-2765
142-149
Grédiac, M.
fa87acbc-25a4-4275-99fd-97d838e9f60e
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Surrel, Y.
59b3c429-195f-4492-b030-2dbdca8b402d
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), 142-149. (doi:10.1007/BF02331118).

Record type: Article

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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More information

Published date: 1999
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 210691
URI: https://eprints.soton.ac.uk/id/eprint/210691
ISSN: 1741-2765
PURE UUID: 44452bd6-bdac-47f8-a7b8-01846ca97f3b
ORCID for F. Pierron: ORCID iD orcid.org/0000-0003-2813-4994

Catalogue record

Date deposited: 15 Feb 2012 17:03
Last modified: 17 Jul 2019 00:44

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