MATEC Web Conf.
Volume 157, 2018Machine Modelling and Simulations 2017 (MMS 2017)
|Number of page(s)||9|
|Section||Modelling of structural materials, composites and nanomaterials|
|Published online||14 March 2018|
Numerical modelling of sandwich panels with a non-continuous soft core
Institute of Mathematics, Czestochowa University of Technology, Armii Krajowej 21, 42-201 Częstochowa, Poland
* Corresponding author: firstname.lastname@example.org
The paper presents the problem of static analysis of sandwich structures with a non-continuous soft core. In the numerical 3D FE models, the core is divided into separated parts. The contact between these parts has the form of unilateral constraints. The model also allows for local debonding of the facing and local imperfections of sandwich panel geometry. Particular attention is paid to the problem of local instability of the facing that is compressed during bending. The phenomenon of progressive damage and the influence of non-continuity of the core on the structural behavior of the sandwich panel is also discussed.
Key words: sandwich panels / soft core / multi-layered structures / finite element method / unilateral contact / local instability
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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