Issue |
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) | 1257 - 1263 | |
DOI | https://doi.org/10.1051/jp4:2006134191 | |
Published online | 26 July 2006 |
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 1257-1263
DOI: 10.1051/jp4:2006134191
Response of pre-loaded laminate composite plates subject to high velocity impact
S.K. García-Castillo, S. Sánchez-Sáez, E. Barbero and C. NavarroDepartment of Continuum Mechanics and Structural Analysis, Carlos III University of Madrid, Avda. de la Universidad 30, 28911 Leganés, Madrid, Spain
Published online: 26 July 2006
Abstract
An experimental and analytical study of two cases of
static preload (uniaxial and biaxial) was made to determine the response of
structural plate elements subjected to high velocity impacts under in-plane
tensile preloading conditions. The results were compared with those obtained
in non-preloading specimens. Rectangular specimens were used for the
uniaxial and non-preload tests, while cross-shaped specimens were used for
the biaxial tests. The impacts were made by spherical projectiles travelling
at velocities from 140 to 525 m/s. As a general result, the existence of a
static preloading on the specimen was found to affect the ballistic limit
and the damaged area. The biaxial preload specimens showed the higher
ballistic limit and the damaged area was slightly bigger in the
non-preloaded specimens. From the analytical model, the ballistic limit
calculated for the non-loaded specimens showed a difference of 16% from
the experimental values, and in the preloaded specimens the model did not
show showed the same tendency as that observed experimentally.
© EDP Sciences 2006