Delamination of laminates governed by free edge interlaminar stresses using interface element
Delamination of laminates governed by free edge interlaminar stresses using interface element
In this paper, interface element with de-cohesive constitutive law is used to predict the delamination progress of laminates in which delamination is the prominent failure mode. For this purpose, a finite element program is developed to perform nonlinear damage analysis. The analyses are carried out based on the interlaminar constitutive law of elastic-plastic-damage proposed before in the literature. Delamination initiation and propagation of several laminates with dominant interlaminar shear stresses at free edges are investigated to find the failure load. It is shown that the difference between the predicted failure loads using the present study and the experimental results are 3.1% to 19.4% for various laminates.
damage mechanics, FEM, free edge delamination, interface element
821-824
Hosseini-Toudeshky, H.
772af740-2748-4c22-8aa3-69868fb29673
Jalalvand, M.
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Mohammadi, B.
8ed8063d-0604-47c6-ba5f-6a69d95e594d
Hosseini-Toudeshky, H.
772af740-2748-4c22-8aa3-69868fb29673
Jalalvand, M.
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Mohammadi, B.
8ed8063d-0604-47c6-ba5f-6a69d95e594d
Hosseini-Toudeshky, H., Jalalvand, M. and Mohammadi, B.
(2008)
Delamination of laminates governed by free edge interlaminar stresses using interface element.
Key Engineering Materials, 385-387, .
(doi:10.4028/www.scientific.net/KEM.385-387.821).
Abstract
In this paper, interface element with de-cohesive constitutive law is used to predict the delamination progress of laminates in which delamination is the prominent failure mode. For this purpose, a finite element program is developed to perform nonlinear damage analysis. The analyses are carried out based on the interlaminar constitutive law of elastic-plastic-damage proposed before in the literature. Delamination initiation and propagation of several laminates with dominant interlaminar shear stresses at free edges are investigated to find the failure load. It is shown that the difference between the predicted failure loads using the present study and the experimental results are 3.1% to 19.4% for various laminates.
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e-pub ahead of print date: 31 July 2008
Keywords:
damage mechanics, FEM, free edge delamination, interface element
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Local EPrints ID: 446508
URI: http://eprints.soton.ac.uk/id/eprint/446508
ISSN: 1013-9826
PURE UUID: c37b4019-273d-4c3b-96aa-8c5d38dd4be4
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Date deposited: 12 Feb 2021 17:30
Last modified: 17 Mar 2024 04:02
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Author:
H. Hosseini-Toudeshky
Author:
B. Mohammadi
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