Analyzing and modeling of energy absorption properties of holed cylindrical metallic dampers

Articles in Press

Document Type : Mechanics article

Authors

1 Mechanical Engineering Department, Sirjan University of Technology, Sirjan, Iran

2 Mechanical Engineering Department, Babol Noshirvani University of Technology, Babol, Iran

Abstract

In this research, the energy absorption performance of metallic thin-walled dampers under axial compression loading was investigated. At first, steel tubes with a thickness of 2 mm and a holed pattern were subjected to the crushing test. Afterward, a finite element (FE) model was designed using the Abaqus software. After experimental validation of the FE model, 27 experiments were designed using a full factorial design and then performed. The angle between the holes, the hole diameter, and the number of hole rows were considered input parameters. The outputs were assumed to be the initial peak force, the mean crushing force, and the specific energy absorption. After analyzing the variance and determining the effect of input parameters and their contribution, regression equations were extracted to estimate the outputs. The results demonstrated that the hole diameter is the most important parameter for the energy absorption performance of the holed steel tubes. Moreover, using the TOPSIS method, it was found that an angle of 60°, a diameter of 5 mm, and 6 rows of holes lead to the best energy absorption while simultaneously considering all mentioned criteria.

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Journal of Modeling in Engineering

Articles in Press, Accepted Manuscript
Available Online from 05 January 2025

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History

  • Receive Date: 02 August 2024
  • Revise Date: 30 October 2024
  • Accept Date: 27 November 2024

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