چكيده به لاتين
Abstract:
In this thesis, the crushing thin-walled tube with polymeric core has been studied and topology optimization in order to increase the energy absorption is done.The first aim of this thesis was to investigate the structural response and resulting energy absorbing performance of the thin-walled tube with polymeric core subjected to quasi static and dynamic axial loading with experimental test, Then in the second part of topology optimization for weight loss coupled with increased or stable energy absorption was carried out against axial load. thin-walled tube assume in the first part of 7075 aluminum alloy, aluminum alloy in the second part of 6061 and for both, is a polyurethane polymer.
In this work, with simulating the thin-walled tube with Polymeric core in appropriate ABAQUS software. Effect of impact and quasi loading will be investigated. The amount of energy absorption, the specific energy absorption and mean crush force have been calculated for wide variety of dimensions and results is compared with experimental results. There is a goodish agreement between simulation and experimental results. ABAQUS software is used for topology optimization. For this purpose, samples were taken under static load and dynamic numerical simulation, then the specimens were topology optimization. Finally, a comparison between samples was carried out, study and comparison showed that the topology optimization of weight loss combined with constant energy absorption has obtained samples
Keywords: thin-walled tube with Polymeric core, Energy absorbtion, Quasi-static and dynamic load, Abaqus, Topology Optimiza
