Damage analysis of pseudo-ductile thin-ply UD hybrid composites – a new analytical method
Damage analysis of pseudo-ductile thin-ply UD hybrid composites – a new analytical method
A new simple analytical approach for predicting all possible damage modes of Uni-Directional (UD) hybrid composites and their stress–strain response in tensile loading is proposed. To do so, the required stress level for the damage modes (fragmentation, delamination and final failure) are assessed separately. The damage process of the UD hybrid can then be predicted based on the order of the required stress for each damage mode. Using the developed analytical method, a new series of standard-thickness glass/thin-ply carbon hybrid composites was tested and a very good pseudo-ductile tensile response with 1.0% pseudo-ductile strain and no load drop until final failure was achieved. The yield stress value for the best tested layup was more than 1130 MPa. The proposed analytical method is simple, very fast to run and it gives accurate results that can be used for designing thin-ply UD hybrid laminates with the desired tensile response and for conducting further parametric studies.
83-93
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
1 February 2015
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Jalalvand, Meisam, Czél, Gergely and Wisnom, Michael R.
(2015)
Damage analysis of pseudo-ductile thin-ply UD hybrid composites – a new analytical method.
Composites Part A: Applied Science and Manufacturing, 69, .
(doi:10.1016/j.compositesa.2014.11.006).
Abstract
A new simple analytical approach for predicting all possible damage modes of Uni-Directional (UD) hybrid composites and their stress–strain response in tensile loading is proposed. To do so, the required stress level for the damage modes (fragmentation, delamination and final failure) are assessed separately. The damage process of the UD hybrid can then be predicted based on the order of the required stress for each damage mode. Using the developed analytical method, a new series of standard-thickness glass/thin-ply carbon hybrid composites was tested and a very good pseudo-ductile tensile response with 1.0% pseudo-ductile strain and no load drop until final failure was achieved. The yield stress value for the best tested layup was more than 1130 MPa. The proposed analytical method is simple, very fast to run and it gives accurate results that can be used for designing thin-ply UD hybrid laminates with the desired tensile response and for conducting further parametric studies.
Text
Damage analysis of pseudo-ductile
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Accepted/In Press date: 2 November 2014
e-pub ahead of print date: 8 November 2014
Published date: 1 February 2015
Identifiers
Local EPrints ID: 445017
URI: http://eprints.soton.ac.uk/id/eprint/445017
ISSN: 1359-835X
PURE UUID: 45310cf6-6c37-48e4-87c1-e8048f67cef9
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Date deposited: 18 Nov 2020 13:16
Last modified: 17 Mar 2024 04:02
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Author:
Gergely Czél
Author:
Michael R. Wisnom
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