Study of the true tensile stress-strain diagram of plain concrete with real size aggregate ; need for and design of a large Hopkinson bar bundle

C. Albertini; M. Montagnani

doi:doi:10.1051/jp4:1994817

Numéro		J. Phys. IV France Volume 04, Numéro C8, Septembre 1994 EURODYMAT 1994 - 4th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		C8-113 - C8-118
DOI		https://doi.org/10.1051/jp4:1994817

EURODYMAT 1994 - 4th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading

J. Phys. IV France 04 (1994) C8-113-C8-118
DOI: 10.1051/jp4:1994817

Study of the true tensile stress-strain diagram of plain concrete with real size aggregate ; need for and design of a large Hopkinson bar bundle

C. Albertini and M. Montagnani

Commission of the European Communities, Joint Research Centre, Institute of Safety Technology, 21020 Ispra (Varese), Italy

Résumé
L'idée est discutée d'employer deux grands faisceaux de barres d'Hopkinson, disposées de façon spéculaire, pour l'observation de la distribution instantanée de la contrainte et de la déformation sur la section résistante des grandes éprouvettes de béton, chargées en dynamique rapide.

Abstract
The idea is discussed of using two specular bundles of Hopkinson's bars for the experimental observation of the instantaneous distribution of stress and strain over the cross-section of large concrete specimens with real size aggregate, subjected to high loading rates.