investigate the response of hierarchical square thin-walled structures that made of ABS polymer and made by a 3D printer under lateral impact

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Pirali Pooya; Heydari Beni Mohsen; Hajimousaei Behnam; Eskandari Jam Jafar

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Paper Information

Journal: Mechanics of Advanced and Smart Materials journal Year:2024 | Volume: | Issue: Page(s): 158-188

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Information Journal Paper

Title

investigate the response of hierarchical square thin-walled structures that made of ABS polymer and made by a 3D printer under lateral impact

Author(s)

Pirali Pooya | Heydari Beni Mohsen | Hajimousaei Behnam | Eskandari Jam Jafar | Issue Writer Certificate

Keywords

hierarchical thin-walled structuresQ4

ABS polymerQ4

3D printerQ4

lateral impactQ4

energy absorptionQ4

Abstract

Thin-walled structures due to their lightness, good energy absorption capacity and high energy to weight absorption ratio are one of the most efficient energy absorption systems in various industries such as automotive, rail and military industries to protect the lives of passengers and pedestrians. Also they are considered in case of accidents or when protecting devices. The purpose of this project is to investigate the response of hierarchical square thin-walled structures that made of ABS polymer and made by a 3D printer under lateral impact. At first, different models are presented in separate categories. Then, due to the hierarchically of the samples, in the simulations, the effect of parameters such as the shape of the houses, the number of houses, the thickness of the walls and etc. are examined and the best samples are made for experimental tests. Then, in order to validate the samples, after making them by a 3D printer, they were subjected to lateral impact by a drop-weight impact test machine and the obtained results were compared with the simulation results. According to the results, it has been observed that 1HR16 is the best sample in energy absorption rate, mean crushing force and crush force efficiency. Also, by increasing the number of houses in each sample, all energy absorption parameters are improved. generally, rectangular-house specimens have better impact resistance.

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