Experimental and Numerical Simulation of Drop Tests of Corrugated Cardbaord Packaging Using An Analytical Homogenized Model

Abstract eng:
This paper presents experimental and numerical studies of drop tests of corrugated cardboard packaging containing different foam inserts. An efficient homogenization model for the corrugated cardboard has been developed. In our H-model, the corrugated cardboard is represented by a 2D plate. Instead of using a local constitutive law (relating the strains to the stresses) at each material point, the homogenization process leads to a generalized constitutive law (relating the generalized strains to the resultant forces) for the equivalent homogeneous plate. Our H-model was implemented into the finite element software ABAQUS. The foam behaviour was experimentally determined and modeled with a crushable foam model of ABAQUS. The drop tests were performed as a free fall from a given height onto a rigid floor. The acceleration of the packed product was recorded using a triaxial accelerometer. The numerical results obtained using the FE simulation with our H-model agree very well with the experimental results. We have also shown that the contribution of the corrugated cardboard box to the shock response is very important.

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