Investigation for impact behavior of acrylonitrile-butadiene-styrene amorphous thermoplastic


Dundar M. A. , Dhaliwal G. S.

POLYMER TESTING, vol.89, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 89
  • Publication Date: 2020
  • Doi Number: 10.1016/j.polymertesting.2020.106624
  • Title of Journal : POLYMER TESTING
  • Keywords: Impact, Thermoplastic, Amorphous, SAMP-1, Strain rate, STRESS-STRAIN BEHAVIOR, PLASTIC-DEFORMATION, GLASSY-POLYMERS, MECHANICAL-PROPERTIES, CONSTITUTIVE MODEL, YIELD BEHAVIOR, TEMPERATURE, POLY(ETHYLENE-TEREPHTHALATE), EVOLUTION, PRESSURE

Abstract

Acrylonitrile-Butadiene-Styrene (ABS) is an important terpolymer that find applications in numerous engineering fields due to its high impact resistance. Thereby, the experimental characterzation and numerical validation of its impact behavior is the main focus of this investigation. Impact tests were carried out using hemi-spherical impactor at three velocities of 4.43 m/s, 5.775 m/s and 6.264 m/s, respectively. The localized material change caused by microvoids was noticed near the impact zone on non-impacted surfaces for all impact velocities. The damage morphologies on the non-impacted surface for 4.43 m/s includes plastic deformation and crazes without any micmvoids, whereas a combination of crazes and microvoids were discovered for other two velocities. Tensile tests at various strain rates, compression and shear tests were performed on ABS material at quasi-static conditions to utilize as an input to the SAMP-1 material model in impact simulations. The predicted impact histories and damage morphologies were compared with the experimental results.