Markus Grillenberger, Martin Schagerl,
"Strain rate dependent yield behavior under compression load of metallic materials based on experimental data"
, in J.F.S. Gomes and S.A. Meguid: Proceedings of 7 International Conference Mechanics and Materials in Design, Publisher INEGI/FEUP, Seite(n) 301-306, 2017, ISBN: 978-989-98832-7-7
Original Titel:
Strain rate dependent yield behavior under compression load of metallic materials based on experimental data
Sprache des Titels:
Englisch
Original Buchtitel:
Proceedings of 7 International Conference Mechanics and Materials in Design
Original Kurzfassung:
A matter of interest in development of empiric cons
titutive material laws, especially in terms
of yielding, is the knowledge of the material behavior up to large deformation at different
strain rates. The compression test seems to be appr
opriate method for gaining data up to large
grades of deformation. However, the gained measurem
ent data does not allow the exact
reading of material models for direct use in numeri
cal analyses. Reasons for deviations are
influences such as friction which leads to boundary
constraints and thus to a multiaxial stress
state at increasing deformation. This article propo
ses a method to compute the actual stress in
the dynamic compression test taking the friction in
to account. The method is based on finite
element analyses and experimental data. The experim
ental data are gained from dynamic
compression tests at different strain rate levels u
sing mild steel.
Forschungs-