Numerical Investigation of Blast Resistance Performance in High-Strength Concrete Structures

Abstract

The increasing occurrence of accidental and intentional explosive events has emphasized the necessity for developing structurally resilient infrastructure capable of withstanding high-intensity blast loads. This study presents a numerical investigation of the blast resistance performance of high-strength concrete structures subjected to dynamic explosive loading conditions. The research focuses on evaluating the structural response, damage characteristics, and energy absorption behavior of high-strength concrete elements under varying blast intensities and standoff distances. A computational methodology based on finite element analysis was employed to simulate blast wave propagation, stress distribution, deformation patterns, and failure mechanisms within reinforced concrete structures. Material nonlinearities, strain-rate effects, and dynamic loading parameters were incorporated into the numerical model to achieve realistic structural behavior under extreme conditions. Parametric analyses were conducted to examine the influence of concrete strength, reinforcement configuration, and structural geometry on blast resistance performance. The simulation results demonstrated that high-strength concrete structures exhibited enhanced load-carrying capacity, reduced crack propagation, lower deformation levels, and improved energy dissipation compared with conventional concrete systems. The optimized structural configurations also showed significant improvements in resistance to progressive collapse and localized damage under severe blast scenarios. Furthermore, the study identified critical design parameters that contribute to improved structural integrity and safety in protective infrastructure applications. The findings conclude that advanced numerical modeling and high-strength concrete technologies provide effective solutions for enhancing blast-resistant structural performance, supporting the design of safer and more durable civil engineering structures for military, industrial, and urban security applications.