Impact damage detection in composite plates using deflectometry and the Virtual Fields Method
Impact damage detection in composite plates using deflectometry and the Virtual Fields Method
This paper presents a new method for detecting damage in layered composite materials using a simple measurement technique, deflectometry. The aim is to locate the damage in a specimen and provide a “signature” from the measured surface slopes. Firstly, this method is applied to plate specimens using numerical and experimental data. Secondly, damage indicator based on a new application of the virtual fields method to compute local apparent gaps in equilibrium is presented and used to process the measurements on plates. It is shown that the damage indicator is very sensitive, allowing detection of damage that is difficult to identify directly from the strain maps.
layered structures, delamination, damage mechanics, non-destructive testing
201-218
Devivier, C.
ed6348bc-6c19-4b40-baff-d7610412dd6d
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Wisnom, M.R.
687416aa-8839-400c-afa3-9fd083f20845
May 2013
Devivier, C.
ed6348bc-6c19-4b40-baff-d7610412dd6d
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Wisnom, M.R.
687416aa-8839-400c-afa3-9fd083f20845
Devivier, C., Pierron, F. and Wisnom, M.R.
(2013)
Impact damage detection in composite plates using deflectometry and the Virtual Fields Method.
Composites Part A: Applied Science and Manufacturing, 48, .
(doi:10.1016/j.compositesa.2013.01.011).
Abstract
This paper presents a new method for detecting damage in layered composite materials using a simple measurement technique, deflectometry. The aim is to locate the damage in a specimen and provide a “signature” from the measured surface slopes. Firstly, this method is applied to plate specimens using numerical and experimental data. Secondly, damage indicator based on a new application of the virtual fields method to compute local apparent gaps in equilibrium is presented and used to process the measurements on plates. It is shown that the damage indicator is very sensitive, allowing detection of damage that is difficult to identify directly from the strain maps.
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Published date: May 2013
Keywords:
layered structures, delamination, damage mechanics, non-destructive testing
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 352013
URI: http://eprints.soton.ac.uk/id/eprint/352013
ISSN: 1359-835X
PURE UUID: 01d20a0c-fe0b-4e6f-8756-38cf75826f7d
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Date deposited: 01 May 2013 10:58
Last modified: 15 Mar 2024 03:35
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Contributors
Author:
C. Devivier
Author:
M.R. Wisnom
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