A numerical study on micromechanics of kink band formation

Krishnappa, S and Gururaja, S (2020) A numerical study on micromechanics of kink band formation. In: AIAA Scitech 2020 Forum, 6 - 10 January 2020, Orlando, pp. 1-10.

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Abstract

Two dimensional repeating unit cells (2D-RUCs) with matrix embedded between two half fibers have been used to study the kink band formation in uni-directional fiber reinforced polymer (UD-FRP) composites at the micro-scale. Fiber failure, plasticity based matrix damage and fiber matrix debonding are the three damage mechanisms considered in the present work. The homogenized compressive response of composite with the above mentioned damage modes is shown in current framework along with the obtained kink band characteristics. The effect of half wavelength (λ) on kink band width and kink band rotation (αk ) has been shown. © 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

Item Type:	Conference Paper
Publication:	AIAA Scitech 2020 Forum
Publisher:	American Institute of Aeronautics and Astronautics Inc, AIAA
Additional Information:	The copyright for this article belongs to American Institute of Aeronautics and Astronautics Inc, AIAA.
Keywords:	Aviation; Fiber reinforced plastics; Fibers; Polymer matrix composites, Compressive response; Damage mechanism; Fiber failures; Fiber reinforced polymers; Fiber-matrix debonding; Half wavelength; Kink band formations; Repeating unit, Failure (mechanical)
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	07 Feb 2023 11:09
Last Modified:	07 Feb 2023 11:09
URI:	https://eprints.iisc.ac.in/id/eprint/80024

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