A measuring method of impact force and velocity at the top of a nonuniform bar.

Abstract

This paper presents a measuring method of impact force and velocity at the top of a bar which has discontinuous cross-sectional areas and properties. These values are calculated from the stresses measured at a suitable point on a uniform part of the bar. This method can be used in the high-strain-rate deformation test of materials at high temperature and any condition which can be applied the theory of the propagation of longitudinal elastic stress waves.