Kinetic response of reinforced concrete slabs to high-velocity projectile impact-robust numerical and statistical driven modeling techniques

Ammar Babiker; Yassir M. Abbas; M. Iqbal Khan; Jamal M.  Khatib

doi:10.1590/1679-78258009

Kinetic response of reinforced concrete slabs to high-velocity projectile impact-robust numerical and statistical driven modeling techniques

Authors

Ammar Babiker School of Civil Engineering, College of Engineering, Sudan University of Science and Technology, P.O. Box 72, Eastern Daim, Khartoum, Sudan https://orcid.org/0000-0002-4081-5015
Yassir M. Abbas Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh -11421, Saudi Arabia https://orcid.org/0000-0003-2451-4770
M. Iqbal Khan Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh -11421, Saudi Arabia https://orcid.org/0000-0002-7200-4866
Jamal M. Khatib Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK https://orcid.org/0000-0002-4393-6728

DOI:

https://doi.org/10.1590/1679-78258009

Abstract

This research explores the dynamic responses of reinforced concrete (RC) slabs under high-velocity impacts. The study utilizes advanced numerical simulations to investigate the effects of varied impact loading and slab depths, unveiling complex rate-dependent behaviors (i.e., impact forces, reactions, accelerations, and displacements) across a diverse range of velocities. The alignment of simulation results with experimental data validates the robustness and accuracy of the employed approach. Additionally, an analytical model predicting the load-carrying capacity and deflection of these slabs under high-velocity loads is proposed. The results indicated that higher loading rates correlate with increased forces and damage until perforation. Analytical models exhibit strong performance within a ±10% error margin, and response surface analysis quantifies the impactor velocity's influence on load for a constant thickness. Overall, this investigation sheds light on the dynamic complexities of RC slabs subjected to high-velocity impacts, providing valuable insights for structural design considerations.

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Published

2024-02-15

Issue

Vol. 21 No. 3 (2024)

Section

Articles

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