Abstract
The flash radiographic method has been used to study the propagation of plane shock waves in laminated composites consisting of alternate layers of PMMA and aluminium. Experiments were arranged so that the shock waves could propagate in the direction parallel to the laminations. The shock front in each PMMA plate was observed to be slightly curved because of the impedance mismatch between constituents. An abrupt change in the area ratio of constituents was also observed at the section of constituents where the shock front was passing by. The average Hugoniot data obtained for laminated composites have been compared with previous theoretical models.
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