Dynamic behavior of aluminum alloy AW 5005 undergoing interfacial friction and specimen configuration in split hopkinson pressure bar system at high strain rates and temperatures Articles uri icon

publication date

  • October 2020

start page

  • 1

end page

  • 19

issue

  • 20, 4614

volume

  • 13

International Standard Serial Number (ISSN)

  • 1996-1944

abstract

  • In this paper, experimental and numerical results of an aluminum alloy's mechanical behavior are discussed. Over a wide range of strain rates (10−4 s−1 ≤ έ ≤ 103 s−1) the influence of the loading impact, velocity and temperature on the dynamic response of the material was analyzed. The interface friction effect on the material"s dynamic response is examined using a split Hopkinson pressure bar (SHPB) in a high temperature experiment using finite element analysis (FEA). The effect of different friction conditions between the specimen and the transmitted/incident bars in the SHPB system was examined using cylinder bulk specimens and cylinder plates defined with four-layer configurations. The results of these tests alongside the presented numerical simulations allow a better understanding of the phenomenon and reduces (minimizes) errors during compression tests at high and low strain rates with temperatures ranging from 21 to 300 °C.

subjects

  • Mechanical Engineering

keywords

  • aluminum alloy; dynamic friction; experiment; numerical simulation; specimen configuration; split hopkinson pressure bar