Methodologies for Cost-Effective Measurement of Dynamic Material Properties or Characterization of Materials under Dynamic Loads

Karagozian & Case, Inc. (K&C) and the Georgia Institute of Technology (Georgia Tech) will develop a re-usable, cost-effective, and accurate dynamic characterization methodology capable of measuring the dynamic material properties of various materials of interest under very high strain rates. Materials property data for various ductile materials (e.g., steel and aluminum) are required as input to first-principles computation codes. First principles codes, like ALE3D, DYNA3D (and PARADYN), ABAQUS, and LS DYNA, for example, are used to assess the response of various structures and components subjected to energetic events or high-velocity impacts, and the accuracy of predictions obtained from them are highly dependent on the accuracy of their material models and the data used to calibrate them. Approved for Public Release | 17-MDA-9219 (31 May 17)