Mechanics & Industry
Volume 17, Number 4, 2016
|Number of page(s)||8|
|Published online||01 June 2016|
Analysis of the dynamic behavior of composite plates subjected to impact
1 Faculty of Engineering 1, Lebanese
2 ISSAE-Cnam Liban, Lebanese University, Beirut, Lebanon
a Corresponding author:
Accepted: 10 February 2016
This paper presents a simple analytical model of the dynamic response of a structure subjected to a low speed impact, in order to predict global damage. The model is based on thick plate theory developed by Reddy and takes into account the through thickness shear. An indentation law based on the theory of Hertz is determined experimentally to model the local response. A numerical integration method is used to calculate the contact force versus time, by combining the indentation with the dynamic response of the structure. The validation has been performed by comparing results with measurements obtained on a falling weight set-up, and a satisfactory correlation is obtained. This model leads to the identification of parameters inducing damage. The modal damping coefficient is taken into account.
Key words: Composite / impact / dynamic response / thick plate / damping
© AFM, EDP Sciences 2016
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