Experimental Measurements for Energy Absorption Abilities of Thin-Walled Circular Cylinders by Crushing Due to Impact Loading. On the Method of Measurement and Evaluation.

Abstract

In this paper, axial crushing tests on thin-walled circular cylinders of aluminium were conducted on an impact testing machine accelerated by air pressure, which is installed in the authors' laboratory at Tokyo Institute of Technology, and measurements for the variations of the loads applied to the specimens and the crushing deformations with time during impact were made with considerable accuracy. The dynamic load-deformation diagrams were extracted from these measurements to estimate the energy absorption abilities of the specimens, thus determining the effects of dimension or material of the specimens and crushing mode. The above results were compared with those of static crushing tests and the differences were discussed.