Studies concerning the Dependence of the Characteristic on the Speed of Deformation applied to Metallic Shock Absorbers through Plastic Deformation

Abstract

The paper deals with the way in which certain metallic non-reversibly deformed parts could be employed in developing shock absorbers for railway vehicles. The study is based on experimental tests using the same type of parts deformed at speeds with ranging between 0.04mm/s and 5,800mm/s. The aim of the present study is to determine whether there is a dependency, for the type of parts subjected to the tests, between the characteristics F=f(d) measured in quasi-static regime and those measured in dynamic regime. The study has applications in highlighting how the F=f(d) of a structure, measured through tests concluded in static regime, can be used to evaluate the behavior of the same structure in dynamic regime.