About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials IX
|
Presentation Title |
Measurement and Simulation of Dynamic Friction via Kolsky Bar Technique |
Author(s) |
Benjamin M. Morrow, Virginia K. Euser, Clarissa A. Yablinsky, Nicholas A. Denissen |
On-Site Speaker (Planned) |
Benjamin M. Morrow |
Abstract Scope |
Interfacial friction (resistance to movement between two different surfaces/materials) is important for many engineering applications (ex. machining, forming, ballistic processes). Though dynamic (high rate) friction is an important factor in overall material behavior of larger integrated experiments and engineering assemblies, it is not commonly measured experimentally. This is partially due to the complexity of the measurements/subsequent analysis of signals, and the relative difficulty of linking these observations to materials behavior during such sliding events. Here we attempt to measure dynamic friction using a modified Kolsky bar (split-Hopkinson pressure bar) technique. This data is directly compared to simulations using the LANL-developed FLAG hydrocode to attempt to validate current friction models, build greater predictive capability for dynamic friction, and streamline analysis of experimental tests and reduce experimental uncertainties. An overview of the present technique will be given, with recent results to demonstrate both successes and challenges of the measurements and simulations. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Characterization, Modeling and Simulation |