1 - Dynamic high-rate tensile characterization of metallic materials with a Kolsky tension bar

Abstract

Kolsky bar techniques have been developed and utilized for characterizing the dynamic behavior of materials at high strain rates, primarily in compression. Recently dynamic tensile technique with Kolsky tension bars has been significantly advanced, particularly for metallic materials. Dynamic tensile characterization of metallic materials provides not only high-strain-rate stress–strain property but also failure/fracture response. In this chapter, the most recent advance in Kolsky tension bar techniques is presented, including Kolsky tension bar design, specimen design, and mounting methods, and challenges in dynamic tensile tests and data reduction process, for cylindrical and flat specimens, respectively. Interrupted Kolsky tension bar techniques are also presented for investigating strain-rate-dependent damage evolution, structure-property relationship, as well as multiscale failure and fracture.