A Low-Cost, Laboratory-Scale Method to Identify Regions of Microstructural Changes in Response to Dynamic Loading Conditions

摘要

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 10~8 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.