Simulation of Concrete Slab Behavior to Explosion

Abstract

Special structure prone to explosion requires special material. Identification of special material is required to find the right concrete properties. Researching material behavior using explosion test is costly. Therefore, prediction using simulation is needed. In this study, we use ANSYS Workbench as a simulation program. The explosion test model comprised a non-reinforced slab 500×500×50 mm and TNT cube. It was found that the compressive strength minimum of the concrete slab that withstand the explosion of 30 grams TNT was 20 MPa. The Young modulus affects to the concrete behavior using default RHT Concrete properties. It had instability against modified concrete properties when performing numerical analysis.

The characteristic of very high-performance concrete (VHPC)

“…The steel fiber also improves concrete ductility, impact resistance, fatigue resistance, shrinkage resistance, flexural strength, and shear strength [7], [16]. It also has potential to sustain impact damage by increasing concrete's ductility [17]. Previous studies used steel fiber in highstrength concrete which increased the tensile strength more than 3% [18].…”