Author(s)

ASSAL HUSSEIN

Abstract

The computational analysis of blast waves involves various techniques and models to simulate the complex phenomena of blast wave generation, propagation and interaction with obstacles. In this study, a numerical simulation using the Eulerian model in ABAQUS is applied to analyse the blast wave generated from an unconfined explosion of 2.3 kg TNT charge. The study offers an efficient approach to simulate blast wave propagation in free air which can provide an accurate prediction to blast wave parameters and reduce time of analysis. Three-dimensional non-linear finite element analysis is performed to predict blast peak-overpressure, time of arrival and blast shock wave velocity. The results of Eulerian model are compared and validated with empirical model. The findings of this study clarified an excellent match with empirical model by Kingery–Bulmash. The advanced numerical simulation models can precisely capture complex phenomena of explosions in different burst events without necessity to conduct costly and unsafe blast field tests.

Keywords

Euler’s model, blast, shockwave, ABAQUS, Kingery–Bulmash, empirical model