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Delamination Initiation and Propagation in Composite Thick Beam Using Cohesive Zone Model

Kizhakkinan, Umesh and Harursampath, Dineshkumar (2016) Delamination Initiation and Propagation in Composite Thick Beam Using Cohesive Zone Model. In: International Workshop on Mechanical Behavior of Thick Composites, MAR 14-15, 2016, Montreal, CANADA, pp. 45-53.

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Delamination failure mechanism in a thick composite beam is investigated using finite element method and cohesive zone model. A thick composite beam with bolted region is considered in this study. A finite element model is developed in ABAQUS and delamination initiation and propagation is simulated using cohesive zone model. The thick composite beam is divided into eight sub-laminates and cohesive interfaces are modeled between each sub-laminate. Three different loading cases are considered: bolt pretension, axial and bending loads. Nonlinear static analysis is carried out to study delamination failure behavior under these loads. Load displacement curves are obtained for different loading cases and it is observed that delamination initiated at the mid-plane of the beam and near the bolt holes. Failure behavior under different loading cases are investigated.

Item Type: Conference Proceedings
Additional Information: Copy right for this article belongs to the DESTECH PUBLICATIONS, INC, 439 DUKE STREET, LANCASTER, PA 17602-4967 USA
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 30 Dec 2016 06:11
Last Modified: 30 Dec 2016 06:11
URI: http://eprints.iisc.ac.in/id/eprint/55622

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