Scabbing and perforation local effect of impactors on concrete structures

Abstract EN

This paper only deals with the effect of hard missile impact (impacting missile is so stiff that its deformability is negligible to the target deformability) and missile velocity between 28 to 103m/s are considered.

Available formulae for prediction the scabbing and perforation thickness of concrete structure impacted by solid missile are summarized and reviewed.

Based on statistical analysis of existing data, two new more safe formulae have been proposed for predicting the scabbing and perforation thickness of concrete structures due to impact by solid missiles.

The new scabbing and perforation thickness formulae include, missile parameter which are weight of the missile(W), diameter of the missile(D), velocity of the missile (V), and target parameter which are concrete member thickness (t), and concrete member strength (fc').

The simplified formulae for scabbing and perforation thickness of concrete structure impacted by solid missile are presented in terms of penetration depth (Xp).

Comparison between present scabbing and perforation thickness of concrete structures impacted by solid missile with other research results are presented