Numéro |
J. Phys. IV France
Volume 110, September 2003
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Page(s) | 609 - 614 | |
DOI | https://doi.org/10.1051/jp4:20020760 |
J. Phys. IV France 110 (2003) 609
DOI: 10.1051/jp4:20020760
An engineering model on penetration of eroding rods into ceramic/polymer composite
R. Zaera, A. Arias and C. NavarroDepartment of Continuum Mechanics and Structural Analysis, Carlos III University of Madrid, Avda. de la Universidad 30, 28911 Leganés, Madrid, Spain
Abstract
A new material composed of a polymer matrix loaded with ceramic partiales, at low cost and of higher ballistic efficiency
than that of the metallic materials used for armouring applications, is proposed as an alternative to the ceramic tiles traditionally
adopted for mixed panels. An engineering model was developed to simulate normal impacts of projectiles against this particulate
composite backed by a metallic plate. The equation governing the erosion of projectile and ceramic is that proposed by Tate
and Alekseevskii, modifie to consider a moving target. For the volume of particulate composite between the projectile and
the metallic plate, an equation was derived to include a momentum balance. For the metallic plate, an energy balance equation
was used. When the projectile has eliminated the ceramic/polymer composite and meets the plate, the model of Awerbuch & Bodner
is adopted, again modifie to consider a moving target. ln this way, the impact process is described by a set of non-linear
differential equations, to be integrated in time. The model was validated with experimental results and with full numerical
simulations and showed agreement with both of them.
© EDP Sciences 2003