Comparative Theoretical Study of Response of R.C Slab for Hard Missiles Impact

Abstract

Nuclear facilities as well as other important government, military and security premises are usually protected against missile impacts from missiles and flying objects using reinforced concrete panels. The current study attempts to conduct a comparative theoretical study of the response of R/C slabs under hard missiles impact. More than 26 formulae were developed previously by many researchers to facilitate the design of R/C slabs against the impact of hard missiles. Different empirical and semi-empirical formulae available in the literature were collected, studied, classified and evaluated with respect to the main performance indicators (penetration, scabbing and perforation). A computer program was developed using the most important formulae. The effect of each selected independent variable on the slab performance was studied and evaluated comparatively between the different formulae .In the comparison of penetration formulae the ACE formula, Petry and Amman formula over-estimate the penetration depth compare to the other formulae. The Chang, Adli and Bechtel formulae gave the minimum of scabbing thickness compare to the other formulae. The ACE, Adli, CEA-EDF perforation formulae under-estimate the perforation thickness.