Abstract
Crashworthiness of conical shells is known to depend on various factors. This study sets out to determine the extent to which the cross-sectional diameter contributes to their energy-absorbing properties. The object of the study was thin-walled aluminium tubes varying in upper diameter and wall thickness. The components were subjected to dynamic axial crushing kinetic energy equal to 1700 J. The numerical analysis was performed using Abaqus 6.14 software. The specific aim of the study was to determine the extent to which variable wall thickness affects the energy absorption capacity of the components under study. From the simulations, we have managed to establish a relationship between total energy absorption capacity and wall thickness. The results from the conducted analyses and the purpose-specific neural networks could provide the base for the future methodology for forecasting and optimisation of energy-absorbing systems.
Highlights
Transport safety today is an issue of critical importance, given that due to technological, economic and social progress, motor vehicles have become the key everyday transport solution.The prevalence of this means of transport carries a certain danger connected with accidents, which involve heavy overloads that could result in mortal injury in people
This paper reported on the study of energy-absorption performance of conical components of variable cross-section geometry
The tested models exhibited various performance and capacity, which was observed to depend on the tested parameters t2 and D2
Summary
Transport safety today is an issue of critical importance, given that due to technological, economic and social progress, motor vehicles have become the key everyday transport solution. The prevalence of this means of transport carries a certain danger connected with accidents, which involve heavy overloads that could result in mortal injury in people. Materials 2020, 13, 4857 following years, scientific works focused on foam-filled thin-walled absorbers [11,12,13,14] Due to their porous structure, these fillers increase the energy-absorption effectiveness of the absorber while maintaining the peak crushing force [15,16,17]. For the advanced software, determining these relationships would be highly resource-consuming and in many cases impossible
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