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) | 1119 - 1124 | |
DOI | https://doi.org/10.1051/jp4:2006134171 | |
Publié en ligne | 26 juillet 2006 |
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 1119-1124
DOI: 10.1051/jp4:2006134171
Behavior of cementitious materials for high-strain rate conditions
M.J. Schmidt1 and O. Cazacu21 Air Force Research Laboratory, Eglin AFB Florida, USA
2 Research Engineering and Education Facility, University of Florida, Shalimar Florida, USA
Published online: 26 July 2006
Abstract
An experimental study aimed at characterization of the
combined effects of confinement and high strain rate on the deformation and
strength of cementitious materials was conducted. Quasi-static triaxial
compression tests for confining pressures ranging from 0 to 6.89 MPa were
performed. Dynamic tests for strain rates in the range 40/s to 160/s, under
unconfined and confined conditions, were conducted using a split Hopkinson
pressure bar. A decrease in strain rate sensitivity with increasing
confining pressure was observed. The materials susceptibility to damage
under shear loading appears to be more a function of confinement than
loading rate. Also, though the uniform stress requirements were not met
under uniaxial conditions, minimal levels of confinement yielded valid
constitutive property data over the majority of the duration of the
experiments
© EDP Sciences 2006