Protocol to define material behaviour and failure strain level at low and high strain rates based on compression test
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Poznan University of Technology, Institute of Structural Engineering, Poznań
Laboratory of Microstructure Studies and Mechanics of Materials, UMR-CNRS 7239, Lorraine University, Metz Cedex
Poznan University of Technology, Institute of Structural Engineering, Poznań, Poland, and Universiapolis, Ecole Polytechnique d’Agadir Bab Al Madina, Agadir
Submission date: 2017-12-30
Acceptance date: 2018-02-08
Online publication date: 2018-04-15
Publication date: 2018-04-15
Journal of Theoretical and Applied Mechanics 2018;56(2):471-481
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.
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