Geometric Scaling of Plates Subjected to Mine Blast

Abstract

In the design of AFVs, study of structures subjected to land mine blast is important. Generally, blast related experimental studies are very time consuming and costly. A simple first cut alternative is finite element modelling and analysis. Here, modelling of mine and simulating the blast effect involves large number of mesh elements, which makes the model computationally intensive and time consuming. Hence, instead of using full scale model for analysis, a suitable scaled down model would reduce analysis time and leads to a faster DOE studies. A proper scaling mechanism is to be evolved in order to get accurate results. Discusses about the scaling of plate subjected to mine blast using dimensional analysis approach. The out-of-plane surface deformation, including velocity fields during the blast loading are compared between the scaled and unscaled plate.