Dispersed-ply design and optimization to improve the brittle flexural behaviour of composite laminates

Mouri Sardar Abadi, P.; Baluch, Abrar H.; Sebaey, T. A.; Peeters, D.M.J.; Barzegar, M.; Lopes, C. S.

doi:10.1016/j.compositesa.2022.107277

Dispersed-ply design and optimization to improve the brittle flexural behaviour of composite laminates

Title

Dispersed-ply design and optimization to improve the brittle flexural behaviour of composite laminates

Author

Mouri Sardar Abadi, P. (IMDEA Materials Institute; Student TU Delft)
Baluch, Abrar H. (IMDEA Materials Institute; Institute of Space Technology, Islamabad)
Sebaey, T. A. (COINS Research Group, Prince Sultan University)
Peeters, D.M.J. (TU Delft Aerospace Structures & Computational Mechanics)
Barzegar, M. (IMDEA Materials Institute; University of Girona)
Lopes, C. S. (IMDEA Materials Institute; Luxembourg Institute of Science and Technology)

Date

2023

Abstract

This work aims to improve the flexural behaviour of unidirectional fibre-reinforced laminates by means of coupling an optimization procedure for quasi-isotropic configurations with the design space opened by dispersed-ply orientations. The design approach consists of finding suitable alternatives to traditional laminates (with fibre orientations limited to 0°, ±45^∘, and 90°), while maintaining their stiffness characteristics. This strategy isolates the interlaminar response as the objective function that is optimized to improve their flexural behaviour. To this end, a modified Ant Colony Optimization was implemented and geared towards optimizing the interlaminar stress profile, allowing plies at every possible 5° orientation, with the ultimate goal of delaying delamination. To validate the approach, a traditional reference laminate and derived fully dispersed designs were experimentally tested. The correlated responses show that it was not possible to improve flexural resistance. However, the typical flexural brittleness of laminates can be modified into a pseudo-ductile behaviour.

Subject

Ant colony algorithm
Dispersed-ply laminates
Flexural behaviour
Optimization

To reference this document use:

http://resolver.tudelft.nl/uuid:a5053581-1f08-4762-8280-6da5a222f20b

DOI

https://doi.org/10.1016/j.compositesa.2022.107277

ISSN

1359-835X

Source

Composites Part A: Applied Science and Manufacturing, 164

Part of collection

Institutional Repository