Design and Fabrication of a Composite Energy Absorber
محورهای موضوعی : composite materials
Hamid Reza Shalian
1
(
Department of Mechanical Engineering,
Malek Ashtar University of Technology, Tehran, Iran
)
Mohammad Hossein Alaee
2
(
Department of Mechanical Engineering, Composite Engineering Research Institute
)
Jafar Eskandari Jam
3
(
Department of Mechanical Engineering, Composite Engineering Research Institute
)
Mohsen Heydari Beni
4
(
Department of Mechanical Engineering,
Malek Ashtar University of Technology, Tehran, Iran
)
Majid Eskandari Shahraki
5
(
Department of Aerospace Engineering,
Ferdowsi University of Mashhad, Mashhad, Iran
)
Naser Asiaban
6
(
Department of Aerospace Engineering,
Ferdowsi University of Mashhad, Mashhad, Iran
)
کلید واژه: Energy Absorber, Quasi-Static, Crash Box, Composite,
چکیده مقاله :
In this paper, the quasi-static test and the damage of the thin-walled composite cylinder were numerically simulated using ABAQUS. Then, a comparison was made between the results of this simulation and those obtained from experimental studies followed by their validation. In the next step, several parameters affecting the energy absorption rate including outer diameter-to-cylinder height ratio, thickness-to-outer diameter ratio, and angle of damage initiation mechanism were selected. They were optimized by modelling different states in ABAQUS. The number of tests is reduced by the design of experiments using response surface methodology and the optimal specimen is extracted by this software. Finally, optimum adsorbent is fabricated and tested. Considering enhanced energy absorption, increased mean reaction force, and reduced initial maximum force, the optimal design parameters include the inner diameter-to-cylinder height ratio of 0.2, thickness-to-inner diameter ratio of 0.1, and angle of damage initiation mechanism of 45°.
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