Much work has recently been conducted at the University of Sheffield on the characterisation of blast loading from shallow buried charges. In the past this has involved using a free flying mass impulse measurement device. This project (funded by DSTL) is concerned with the creation of a new high resolution impulse measurement device which is based around a load cell mounted rigid reaction plate. The aim of the new device is to be able to measure the variation in impulse both spatially and temporally. This will be achieved by using a combination of measurement methods; load cells to pick up the overall loading and Hopkinson pressure bars to pick up the spatial variation of the loading.
The project will involve making detailed measurements of the spatial and temporal variations of blast loading from carefully controlled experiments involving the detonation of buried explosive charges. The aims include developing load data for model validation and design of protective structures, in addition to investigations into the basic mechanics of load transfer onto targets.