Abstract
Concrete is basic construction material used for plentiful kind of structure. However, in the typical vital structures have to be designed as self-protective such as nuclear plants, Power plants, Weapon Industries, weapons storage places, water retaining structures, & etc., which provides protection against any natural disaster tragedy incident or intentionally produced horrible incidents such as dynamic loading, incident occurs in nuclear plants, terrorist attack, war, missile attack, Tsunami and etc. This paper questioningly is paying concentration on judgment on minimum required kinetic energy for perforation on the concrete structures generated by hard missile using curve fitting empirical study. Argue overcome from this newly developed empirical formula can be used for making design recommendations and design procedures for determining the dynamic reaction of the target to foil perforation.
Highlights
Over the years, concrete is very commonly used construction material for the defensive and civil applications to protect structures from local and explosive impact loads
This study shows the influence of relative target thickness (H/d) on the required critical impact kinetic energy which may cause the complete or just perforation in concrete targets, when it is subjected to the impact of flat nose hard missile
Overall predictions based on both NDRC and semi-empirical formulae are closer to experimental data than those based on UMIST formulae, the NDRC and semi-empirical formulae sometimes overestimate the required critical impact kinetic energy for the perforation of concrete target
Summary
Concrete is very commonly used construction material for the defensive and civil applications to protect structures from local and explosive impact loads. The local impact effect of hard missile on concrete structures can be studied in three ways, (i). Empirical formulae based on experimental data are especially important in this field due to the complexity of the local impact phenomena. Some of these have been summarized in previous review papers. The way in which the kinetic energy is distributed through the concrete target is noteworthy in determining its response against local impact effects (perforation). This study shows the influence of relative target thickness (H/d) on the required critical impact kinetic energy which may cause the complete or just perforation in concrete targets, when it is subjected to the impact of flat nose hard missile. This study is based on empirical formula predicted by using curve fitting data method by polynomial equation
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