Instrumented anvil-on-rod impact testing of a bulk metallic glass composite for constitutive model validation

Instrumented anvil-on-rod impact testing is used to investigate the high-strain-rate mechanical behavior of Zr-based bulk metallic glass composite containing 70 vol.% tungsten. Transient deformation profiles and sample back surface velocity traces are obtained using high speed digital imaging and VISAR velocity interferometry, and compared with those generated with finite element simulations. The comparisons provide validation of constitutive models and elucidation of response dominated either by glass matrix, or tungsten reinforcement, or rule of mixtures combination of properties of the two phases.