Evaluating Impact Resistance of Aluminum 6061-T651 Plate using Smoothed Particle Hydrodynamics Method

  • Ehsan Hedayati Department of Mechanical Engineering, College of Technical Engineering, Islamic Azad University, Saveh
  • Mohammad Vahedi Department of Mechanical Engineering, College of Technical Engineering, Islamic Azad University, Saveh
Keywords: Smoothed particle hydrodynamics, Rosenberg analytical model, Energy absorption, ABAQUS, penetration

Abstract

Performing various experimental, theoretical, and numerical investigations for better understanding of behavioural characteristics of metals under impact loading is of primary importance. In this paper, application of smoothed particle hydrodynamics (SPH) method in impact mechanics is discussed and effective parameters on impact strength of an aluminum plate are investigated. To evaluate the accuracy of smoothed particle hydrodynamics method for simulating impact, Recht and Ipson model is first provided thoroughly for both Rosenberg analytical model and smoothed particle hydrodynamics method, and then plots of initial velocity-residual velocity and initial velocity-absorbed energy for target of aluminum 6061-T651 are presented. The derived information and simulation results expresses that the maximum error percentage of smoothed particle hydrodynamics method in compared with Rosenberg analytical model is within an acceptable range. Therefore, the results of smoothed particle hydrodynamics method verify the Rosenberg analytical model with high accuracy. Results reveal that higher initial impact velocity decreases the time of projectile penetration, and so penetration depth and length as well as the local damage rate of plate increases.

Author Biographies

Ehsan Hedayati, Department of Mechanical Engineering, College of Technical Engineering, Islamic Azad University, Saveh
Mr Ehsan Hedayati received his BSc and MSc in Mechanical Engineering. He holds MS degree in Mechanical Engineering from Islamic Azad University of Saveh, Iran. He has published nearly 10 papers in various journals and conferences. His research interests are : Impact mechanics, composite material, fracture mechanics and finite element method.
Mohammad Vahedi, Department of Mechanical Engineering, College of Technical Engineering, Islamic Azad University, Saveh
Dr Mohammad Vahedi received his BS, MS, and PhD in Mechanical Engineering from Amirkabir University of Technology, Shiraz University and Iran University of Science and Technology in Iran, respectively. Currently working as an Assistant Professor and Head of Department of Mechanical Engineering in Faculty of Engineering at Azad University of Saveh, Iran. He has published nearly 20 papers in various journals and conferences. His research interests are vibration and acoustic, impact mechanics, fracture mechanics and finite element method.
Published
2018-04-16
How to Cite
Hedayati, E., & Vahedi, M. (2018). Evaluating Impact Resistance of Aluminum 6061-T651 Plate using Smoothed Particle Hydrodynamics Method. Defence Science Journal, 68(3), 251-259. https://doi.org/10.14429/dsj.68.11635
Section
Armaments & Explosives