Effect of substrate compliance on the global unilateral post-buckling of coatings: AFM observations and finite element calculations

The post-critical regime of straight-sided wrinkles on compliant substrates of polycarbonate has been observed by atomic force microscope and investigated by means of finite element simulations. The effect of coupling between the film and its substrate has revealed a global buckling phenomenon, char...

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Published in:Acta materialia 2005-01, Vol.53 (2), p.441-447
Main Authors: Parry, G., Colin, J., Coupeau, C., Foucher, F., Cimetière, A., Grilhé, J.
Format: Article
Language:English
Subjects:
Applied sciences
ATOMIC FORCE MICROSCOPY
BUCKLING
COATINGS
COMPLIANCE
COUPLING
Exact sciences and technology
Finite element analysis
FINITE ELEMENT METHOD
MATERIALS SCIENCE
Metals. Metallurgy
SIMULATION
STRESSES
SUBSTRATES
THIN FILMS
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cited_by cdi_FETCH-LOGICAL-c367t-b68156d30a23fc5546e3041125ba35a253a4b1714fb2bd29c24e36b51f1858bb3
cites cdi_FETCH-LOGICAL-c367t-b68156d30a23fc5546e3041125ba35a253a4b1714fb2bd29c24e36b51f1858bb3
container_end_page 447
container_issue 2
container_start_page 441
container_title Acta materialia
container_volume 53
creator Parry, G.
Colin, J.
Coupeau, C.
Foucher, F.
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Grilhé, J.
description The post-critical regime of straight-sided wrinkles on compliant substrates of polycarbonate has been observed by atomic force microscope and investigated by means of finite element simulations. The effect of coupling between the film and its substrate has revealed a global buckling phenomenon, characterized by critical loads lower than those found in the case of a rigid substrate. Characteristic shapes of the buckled structure have been also found to spread over a region wider than the delaminated zone itself. A law relating the film deflexion to the stress has finally been established for any film/substrate system.
doi_str_mv 10.1016/j.actamat.2004.09.039
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subjects Applied sciences
ATOMIC FORCE MICROSCOPY
BUCKLING
COATINGS
COMPLIANCE
COUPLING
Exact sciences and technology
Finite element analysis
FINITE ELEMENT METHOD
MATERIALS SCIENCE
Metals. Metallurgy
SIMULATION
STRESSES
SUBSTRATES
THIN FILMS
title Effect of substrate compliance on the global unilateral post-buckling of coatings: AFM observations and finite element calculations
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