Penetration models for rigid projectiles based on cavity expansion theory (CET) are widely used. In this article we performed several hydrocode simulations and compared with analytical results from CET-based theories for ...

This report is part of an ongoing effort to improve the ability of the Norwegian Defence Estates Agency (FB) to assess noise pollution from firing ranges. At FFI we are currently developing methods to theoretically predict ...

Performing sensitivity studies using 3D-hydrocodes have normally been an extremely time consuming process and still remains so even though computer speed continues to increase. To overcome this problem, a combined analytical ...

This report provides the documention for a Matlab toolbox that has been developed at FFI. The purpose of the toolbox is to process and analyse raw data from a GREAC cell test, in order to extract material models and parameters ...

Two methods for creating a two-component material in Autodyn are described. In the first approach we fill two separate subgrids with different materials whereas the second method fills one subgrid with two different ...

Using the hydrocode Autodyn we perform numerical simulations of penetration into various combinations of ceramic armour and backing material. In particular we look at the penetration performance of two common 7.62 x 51 ...

The analytical approach for predicting penetration of rigid projectiles into concrete targets indicates that the scaled penetration depth is a function of only two non-dimensional parameters. This report analyses experiments ...

Penetration into modular targets (i.e. a wall or similar structure consisting of several target blocks) is examined using a variety of methods. Full Autodyn-3D simulations are performed and supported by analytical calculations. ...