Mechanic of Advanced and Smart Materials
Quarterly

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

Document Type : Original Article

Authors

Pooya Pirali 1
Mohsen Heydari Beni 2
Behnam Hajimousaei 3
Jafar Eskandari Jam 4

1 Assistant Professor, Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran.

2 Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran.

3 Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran.

4 Faculty of Materials and Manufacturing Processes, Malek Ashtar University of Technology, Iran

https://doi.org/10.61186/masm.4.1.158
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.

Keywords

hierarchical thin-walled structures
ABS polymer
3D printer
lateral impact
energy absorption
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Mechanic of Advanced and Smart Materials
Volume 4, Issue 1
Spring 2024
Pages 158-188

  • Receive Date 11 June 2024
  • Revise Date 16 June 2024
  • Accept Date 18 June 2024

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