Importance of the model selection for processing dynamic three-point bending tests

Franck Delvare (1) , B. Durand (1, 2) , Jean-Luc Hanus (1) , Sébastien Richomme (2)

1 LEES - Laboratoire Énergétique Explosions Structures [1998-2007]
2 INERIS - Institut National de l'Environnement Industriel et des Risques

The Split-Hopkinson Pressure Bar apparatus remains the standard test to investigate high strain rate materials properties. To determine the tensile strength of quasi-brittle materials three-point bending tests are frequently employed. In this paper, we compare different analytical models for processing the recorded experimental wave signals. It is concluded that only the semi-infinite beam model and the modal superposition analysis with several modes are relevant to get precise strain rate and material dynamic characteristics

Domaines: Sciences de l'ingénieur [physics]

Franck Delvare, B. Durand, Jean-Luc Hanus, Sébastien Richomme. Importance of the model selection for processing dynamic three-point bending tests. 1. International Conference on Passives and Actives Mechanical Innovations in Analysis and Design of Mechanical Systems "Dynamic of Systems, Materials and Structures" (IMPACT 2010), Mar 2010, Djerba, Tunisia. pp.Art 400. ⟨ineris-00973604⟩