Journal of Theoretical
and Applied Mechanics

52, 2, pp. 431-442, Warsaw 2014

Numerical simulation and experimental bending behaviour of multi-layer sandwich structures

Jamal Arbaoui, Yves Schmitt, J-Luc Pierrot, François-Xavier Royer

In this paper, an experimental investigation, an analytical analysis and a numerical model of a typical four-point bending test on a polypropylene honeycomb multi-layer sandwich panel are proposed. The polypropylene honeycomb core is modelled as a single solid and multi-layer of equivalent material properties. Analytical and numerical (finite element) homogenization approaches are used to compute the effective properties of the single honeycomb core and analytical homogenization of the multi-layer one. The results obtained by numerical simulation (finite element) of four-point bending are compared with the experimental results of a polypropylene honeycomb core/composite facing multi-layer sandwich structures.
Keywords: multi-layer sandwich; polypropylene honeycomb; modelling; bending