Dynamic material properties for numerical modelling of impact behavior of light-alloy structures
Year: 2019
Type: conference-paper
Abstract: This study presents tensile testing results for ZE10 magnesium and 6111-T4 aluminum alloys at different strain rates. For crashworthiness applications an understanding of material behavior at relevant strain rates is needed as well as constitutive equations suitable for use with numerical simulation tools. The mechanical properties were determined from tensile test using flat sheet specimens and recurring to different test techniques: servo-hydraulic machine and a tensile-loading Hopkinson bar. The results were used to compare different mechanical properties and to validate constitutive equations intended to provide a mathematical description of strain rate dependence. The Cowper-Symonds equation was examined.
Authors: Nuno Peixinho, Bruno Azevedo
Institution: University of Minho
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2965553552