Numerical simulation to evaluate the behavior of high-strength concrete (HSC) slabs under blast loading

Abstract

This study presents a numerical simulation to evaluate the behavior of high-strength concrete (HSC) slabs under blast loading. A three-dimensional finite element model was developed, incorporating the blast source, structural elements, and boundary conditions, to comprehensively simulate the response of HSC slabs to shock wave impacts. Key parameters such as maximum deflection, deformation, and damage states of the slabs were analyzed in detail. The Concrete Damaged Plasticity (CDP) material model was employed to accurately predict the nonlinear behavior of concrete under dynamic loading conditions. The results demonstrated that HSC slabs exhibit significantly better blast resistance compared to normal concrete, with a 50% reduction in post-blast displacement and 60% less severe damage. These findings provide a scientific foundation for the design and implementation of high-strength concrete in structures requiring enhanced blast resistance.