ICCM Conferences, The 12th International Conference on Computational Methods (ICCM2021)

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Impact analysis of sandwiched thin-walled tubes with face plate
Venkata Ravi Vusa, Pattabhi Ramaiah Budarapu

Last modified: 2021-06-15


This investigation is focused on dissipation of energy as well as crushing characteristics of thin-walled tubes of different geometries, after addition of the face plate at top and bottom of the tube, both, with and without foam [1] under dynamic impact conditions. Different geometries of the tubes, such as: circle, ellipse, hexagon, square and triangle, were considered. The tubes are assigned by aluminum properties and their non-linear distortion is obtained under axial compressive loading. The thin-walled performance of tubes over the addition of face cover on top and bottom is compared to the thin-walled tubes, considering both, with and without foam. The finite element code of ABAQUS/Explicit was used to carry out the impact simulations [2] to explore the detailed insights during the crushing process, like: deformation mode and folding formation. The addition of face plates to the thin-walled tubes is observed to alter the deformation mode as well as the folding pattern compared to the tube configuration without face, in both with and without foam conditions. The results after employing the face cover on the square thin-walled tube is observed to enhance the crush response of the tube by 1% more energy dissipation along with improvement in the specific energy absorption. On the other hand, the specific energy absorption results considering the addition of face cover is not able to enhance the crush performance of some tube geometries, reduced by 0.04%-0.13%, however, accomplished an improvement of 1% in the energy dissipation of the square tube.


Unit cell, Cellular Structures, Impact analysis, Deformation mode, Energy absorption

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