Toward Material Property Extraction from Dynamic Spherical Indentation Experiments on Hardening Polycrystalline Metals

Static indentation and dynamic are reviewed, with a focus on extraction of material properties isotropic strain-hardening polycrystalline metals that may be rate- temperature-sensitive. is reviewed first, followed by indentation, since the former regarded as specialization latter inertia, rate dependence, adiabatic heating excluded. Extending concepts from literature review, treatment using dimensional analysis forwarded, general framework for property information (i.e., constitutive model parameters) instrumented spherical experiments set forth. In an example application methodology, experimental data obtained in miniature Kolsky bar apparatus evaluated via analysis. The substrate aluminum alloy Al 6061-T6. Several definitions strain proposed static assessed rates. While fidelity method inertial effects could inhibit elastic properties, certain plastic feasible. Current insufficient to enable determination complete unique all physical properties. Motivated present review analysis, new simulations would identify influences facilitating their data.