"Material Model Development from Quasi Static to High Strain Rate for Thermoset Polymers"


Çolak Çakır Ö. Ü., Bakbak O.

COST Action HISTRATE 2024, Advanced Composites under High Strain Rates Loading: A Route to Certification-by-Analysis., İstanbul, Turkey, 5 - 06 June 2024, pp.1

  • Publication Type: Conference Paper / Summary Text
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.1
  • Yıldız Technical University Affiliated: Yes

Abstract

Material modeling of thermoset polymers from quasi-static to high strain rate loading requires accounting for the unique characteristics of crosslinked structures, nonlinear viscoelastic behavior, residual stresses, brittle fracture behavior, and thermal effects. Among these unique characteristics, adiabatic heating which is observed at high strain rates is taken into account in the development of cooperative viscoplasticity theory based on overstress for high strain rate applications. The thermal strain is included into the total rate of deformation formulation and compression behaviors at quasi static and high strain rate loading are simulated for various strain rates. The influences of thermal strain on the stress-strain behavior are depicted.