Influence of end constraints on the collapse of axially impacted frusta

摘要

The energy absorption performance of right circular frusta subjected to dynamic axial load is studied and compared with the results of quasi-static tests. Frusta of different geometric ratios and end constraints were axially crushed using a drop hammer at initial velocities in the range of 2-5 m s. The effect of heat treatment on the collapse behaviour and energy absorption is also investigated. The experimental observations indicate that the effects of end constraints and heat treatment on energy absorption were qualitatively similar to those observed under quasi-static testing.