Modelling the mechanical response of adobe components under uniaxial loading

A numerical technique to design blast noise mitigation measures

Large weapons, such as armor, artillery or demolitions, create a high-energy blast wave. It has a low frequency content, typically between 15 and 125 Hz, and can propagate over large distances. As a result it is a relative important cause for annoyance. Mitigation measures need to be close to the source for best effectiveness, but due to the...

A blast absorber test: Measurement and model results

A blast absorber test was conducted at the Aberdeen Test Centre from 13 to 17 June 2005. The test was set up to determine the absorbing and shielding effect of a gravel pile, of 1.5 meters high and 15 by 15 meters wide, on blasts from large weapons: e.g. armor, artillery or demolition. The blast was simulated with single brick C-4 charges of 570...

Experimental evaluation of thermal camouflage effectiveness

The detectability of a target in the infrared spectral region is determined by differences between the radiative signatures of the target and the local background. This implies that both, the difference in surface temperature and emissivity ΔT resp. Δε and the distribution of these differences over the target area and the background, are of...

Infrared activities in the Netherlands

This presentation summarizes the infrared activities in the Netherlands during the past 30 years and indicates the directions for future work. The capabilities of infrared technology, being passive and useful for night vision applications were envisaged for a long time in our country. The dependence on the military market however made the...