Numéro |
J. Phys. IV France
Volume 134, August 2006
EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
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Page(s) | 647 - 652 | |
DOI | https://doi.org/10.1051/jp4:2006134100 | |
Publié en ligne | 26 juillet 2006 |
EURODYMAT 2006 - 8th International Conference on Mehanical and Physical Behaviour of Materials under Dynamic Loading
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 647-652
DOI: 10.1051/jp4:2006134100
1 University of Applied Sciences of Southern Switzerland, 6952 Canobbio, Switzerland
2 European Commission, Directorate General Joint Research Centre, 21020 Ispra, Italy
Published online: 26 July 2006
© EDP Sciences 2006
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 647-652
DOI: 10.1051/jp4:2006134100
Analysis of the concrete behaviour in tension at high strain-rate by a modified Hopkinson bar in support of impact resistant structural design
E. Cadoni1, C. Albertini2 and G. Solomos21 University of Applied Sciences of Southern Switzerland, 6952 Canobbio, Switzerland
2 European Commission, Directorate General Joint Research Centre, 21020 Ispra, Italy
Published online: 26 July 2006
Abstract
The strain-rate sensitivity of concrete in tension has
been investigated employing Hopkinson bar techniques. The devices used have
allowed the successful testing of large specimens with real size aggregates.
Full stress-strain curves, including the softening branch, have been
obtained for several strain rates. The use of bar bundles for holding the
specimens has further provided insight on the fracturing mechanism inside
the specimen, revealing amply the crack multi-activation process under
dynamic loading. Such data are considered essential in the impact and blast
resistant design of concrete structures..
© EDP Sciences 2006