Abstract
Simulation of Soil-Structure Interaction becomes more and more the focus
of computational engineering in civil and mechanical engineering, where
FEM (Finite element Methods) for soil and structural mechanics and Finite
Volume for CFD (Computational Fluid Dynamics) are dominant. New
advanced formulations have been developed for FSI (Fluid Structure
Interaction) applications using ALE (Arbitrary Lagrangian Eulerian), mesh free
and SPH (Smooth Particle Hydrodynamic) methods. In defence industry,
engineers have been developing protection systems for many years to
reduce the vulnerability of light armoured vehicles (LAV) against mine blast
using classical Lagrangian FEM methods. To improve simulations and assist
in the development of these protections, experimental tests and new
numerical techniques are performed. Initial conditions such as the loading
prescribed by a mine on a structure should be simulated adequately in order
to conduct these numerical calculations. The effects of blast on structures
often depend on how the initial conditions are estimated and applied. This
article uses two methods to simulate a mine blast, namely the classical
Lagrangian as well as the ALE formulations. The comparison was carried out
for a simple and also a more complex target. Particle methods as SPH
method can also be used for soil structure interaction.