Abstract
This paper describes an experimental investigation into the energy absorption properties of a foam-cored sandwich panel with integral fibre-reinforced plastic tubes and frusta. The panels were tested under both quasi-static flatwise and edgewise compression. Under flatwise compression, it was found that the panels with inserts which failed by stable progressive brittle fracture exhibited the best energy absorption characteristics. Under edgewise compression, the panels with inserts which prevented separation of the face plates offered the most predictable and repeatable performance. Particular insert geometries which achieve these ideals are identified.
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