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Parametric study of failure mechanisms and optimal configurations of pseudo-ductile thin-ply UD hybrid composites

Parametric study of failure mechanisms and optimal configurations of pseudo-ductile thin-ply UD hybrid composites
Parametric study of failure mechanisms and optimal configurations of pseudo-ductile thin-ply UD hybrid composites
The effect of different parameters on the gradual failure and pseudo-ductility of thin UD hybrids is studied using an analytical method developed recently. Damage mode maps are proposed to show the effect of different geometric parameters for a specific material combination. This type of map is a novel and efficient method to find the optimum configuration of UD hybrids and also indicates the importance of thin layers to achieve the optimum geometric parameters in practice. The material parametric study reveals that there is always a trade-off between the "yield stress" and the amount of pseudo-ductility; higher yield stresses leads to lower pseudo-ductility and vice versa. However, application of high-stiffness fibres with high strengths as the low strain material can provide both better pseudo-ductility and yield stress.
B. delamination, B. fragmentation, C. damage mechanics, parametric study
1359-835X
123-131
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
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) Parametric study of failure mechanisms and optimal configurations of pseudo-ductile thin-ply UD hybrid composites. Composites Part A: Applied Science and Manufacturing, 74, 123-131. (doi:10.1016/j.compositesa.2015.04.001).

Record type: Article

Abstract

The effect of different parameters on the gradual failure and pseudo-ductility of thin UD hybrids is studied using an analytical method developed recently. Damage mode maps are proposed to show the effect of different geometric parameters for a specific material combination. This type of map is a novel and efficient method to find the optimum configuration of UD hybrids and also indicates the importance of thin layers to achieve the optimum geometric parameters in practice. The material parametric study reveals that there is always a trade-off between the "yield stress" and the amount of pseudo-ductility; higher yield stresses leads to lower pseudo-ductility and vice versa. However, application of high-stiffness fibres with high strengths as the low strain material can provide both better pseudo-ductility and yield stress.

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More information

Accepted/In Press date: 1 April 2015
e-pub ahead of print date: 7 April 2015
Published date: 31 July 2015
Keywords: B. delamination, B. fragmentation, C. damage mechanics, parametric study

Identifiers

Local EPrints ID: 446728
URI: http://eprints.soton.ac.uk/id/eprint/446728
ISSN: 1359-835X
PURE UUID: 5fc50057-d142-4e6a-81aa-b92d116479e7
ORCID for Meisam Jalalvand: ORCID iD orcid.org/0000-0003-4691-6252

Catalogue record

Date deposited: 19 Feb 2021 17:31
Last modified: 20 Feb 2021 02:59

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Contributors

Author: Gergely Czél
Author: Michael R. Wisnom

University divisions

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