A low-cost, laboratory-scale method to identify regions of microstructural changes in response to dynamic loading conditions

Abstract

This work outlines the development of a low-cost, laboratory-scale experiment method based on metal cutting techniques to support first-principles modeling of structural material responses under a range of dynamic loadings. The range of strain rates of interest is similar to that experienced in metals in advance of a cutting tool with maximum shear strains up to 4 at maximum shear strain rates up to 108 s−1. By characterizing the chips formed at the varying strain rates, regions of microstructural changes can be readily identified and stress versus strain curves of interest can be produced.