Numerical investigation of intrinsic competing damage mechanisms in unidirectional fiber reinforced polymer composites under compression

Krishnappa, S and Gururaja, S (2023) Numerical investigation of intrinsic competing damage mechanisms in unidirectional fiber reinforced polymer composites under compression. In: Mechanics of Advanced Materials and Structures .

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Abstract

A three-dimensional repeating unit cell (3D-RUC) framework is used to analyze the effect of competing damage mechanisms�fiber failure, matrix plasticity/cracking, and fiber-matrix debonding�on the composite�s compressive behavior. Numerous parametric studies are carried out to investigate the impact of fiber volume fraction, fiber misalignment, and interfacial properties (such as strength, fracture energies, and friction) on compressive behavior. The results show that the compressive strength and kink band characteristics are integrally dependent on the fiber volume fraction, fiber misalignment, interfacial shear strength, interfacial friction, and matrix cracking, highlighting the need to accurately characterize the constituent�s mechanical properties and geometrical features. © 2023 Taylor & Francis Group, LLC.

Item Type:	Journal Article
Publication:	Mechanics of Advanced Materials and Structures
Publisher:	Taylor and Francis Ltd.
Additional Information:	The copyright for this article belongs to Taylor and Francis Ltd..
Keywords:	Alignment; Cracks; Failure (mechanical); Fiber reinforced plastics; Fibers; Friction; Polymer matrix composites; Volume fraction, 3d-RUC; Compressive behavior; Damage mechanism; Fiber failures; Fiber volume fractions; Fibre misalignment; Kinking; Matrix cracking; Numerical investigations; Unidirectional fibers, Compressive strength
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	29 Apr 2024 09:49
Last Modified:	29 Apr 2024 09:49
URI:	https://eprints.iisc.ac.in/id/eprint/84359

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