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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 65
FINITE ELEMENTS: TECHNIQUES AND DEVELOPMENTS
Edited by: B.H.V. Topping
Paper X.2

Numerical Simulation of Aeronautical Paint Layer Decoating

B. Zouari and M. Touratier

LM2S, Ecole Nationale Supérieure d'Arts et Métiers, Paris, France

Full Bibliographic Reference for this paper
B. Zouari, M. Touratier, "Numerical Simulation of Aeronautical Paint Layer Decoating", in B.H.V. Topping, (Editor), "Finite Elements: Techniques and Developments", Civil-Comp Press, Edinburgh, UK, pp 231-236, 2000. doi:10.4203/ccp.65.10.2
Abstract
The well known models proposed to qualify the volume of material removal from abrasive particle impact are analytical. They are based on simplified hypotheses and neglect the dynamic response of the structure or of the material. This paper addresses the numerical simulation of the impact of spherical particles on a substrate corresponding to an aluminium alloy sheet (A2024) coated with polyurethane paint (PAC 33). The main mechanism of paint removal is the delamination of the paint. The criterion of delamination is based on the state of stresses at the interface substrate and paint. This criterion has been introduced in the finite element modelling. The numerical results are compared to experimental data.

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