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) | 305 - 310 | |
DOI | https://doi.org/10.1051/jp4:2006134047 | |
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) 305-310
DOI: 10.1051/jp4:2006134047
Scientific College, National Univ. of Defense Technology, Changsha, Hunan 410073, China
Published online: 26 July 2006
© EDP Sciences 2006
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 305-310
DOI: 10.1051/jp4:2006134047
Constitutive behaviors of a silicone rubber at high strain rates
Fangyun Lu, Yuliang Lin and Li LuScientific College, National Univ. of Defense Technology, Changsha, Hunan 410073, China
Published online: 26 July 2006
Abstract
Silicone rubber is a macromolecule polymer, and can
suffer a large deformation. In the paper, the silicone rubber specimens are
tested at a series of strain rates by modified SHPB techniques. Based on the
experimental data, a constitutive model of the silicone rubber is built up
based on Ogden strain energy functions. An interesting phenomenon—
localized damage cycle, so called lag circle— shows up in the tested
specimen under high strain-rates loading. The diameters of the damage cycle
are associated with strain-rate and specimen's size. A formulation about the
relations between the diameter and the strain-rate, specimen's size is
presented.
© EDP Sciences 2006