Journal of Theoretical
and Applied Mechanics

56, 2, pp. 471-481, Warsaw 2018
DOI: 10.15632/jtam-pl.56.2.471

Protocol to define material behaviour and failure strain level at low and high strain rates based on compression test

Tomasz Jankowiak, Alexis Rusinek, Amine Bendarma
Compression test is frequently used to define material behaviour. However, this test may be
depending on different effects, for example friction, specimen inertia or local stress triaxiality.
For this reason, a new design is proposed to analyse the previous effects and to try to
minimize it on quantities measured as macroscopic stress and strain. To have a complete
understanding, numerical simulations have been performed using finite element method
(Abaqus/Standard and Abaqus/Explicit). It allows one to define the macroscopic behaviour
and to have an access to the local values not accessible during experiments for a better
understanding of the experimental measurements.
Keywords: stress triaxiality, dynamic compression, material behaviour, numerical simulation