Numerical investigations on Blast loadings

In a military context, soldiers are often exposed to high speed dynamics loads, such as, blast. Blast refers to shock wave generating an important rise in pressure, consecutive to an explosion. Unlike automotive impacts, blast phenomenon is dominated by pressure wave dynamics. These research fields are widely investigated in the literature, both at experimental and numerical level, in order to develop and optimise protection devices. The understanding of this complex mechanism is of extreme importance. Specific formulations of finite element methods are used to simulate this loading. This study aims to investigate blast phenomenon at a numerical level using different formulations of finite elements methods, such as, Eulerian or Smoothed Particle Hydrodynamics (SPH) Method. Comparisons of the numerical results with semi-empirical data of the literature were conducted in terms of mechanical parameters such as pressure observed in the air field.

The Author

Aristide  Awoukeng Goumtcha
Ph.D Student
Université de Technologie de Belfort-Montbéliard UTBM