Consideration of stress gauges in the modelling of plate impacts

Church, P.; Townsley, R.; Millett, J.
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p1083
Academic Journal
The modelling of a plate impact experiment has been carried out using the Lagrangian hydrocode DYNA. In the experimental setup the shock wave is analysed using a gauge sandwiched between the two stationary plates. The investigation of the shock wave in the simulation would normally entail examining data recorded by a single element approximating the gauge. An attempt was made to crudely model the actual gauge used. Differing levels of complexity in the representation of the gauge were simulated, and their effect on the shock wave examined. The simulation used a recently developed path dependent model for copper which has been shown to perform well in a variety of scenarios. This paper discusses various issues concerning the comparison with gauge results in plate impact experiments.


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