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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Algorithm Development in Materials Science and Engineering
Presentation Title Material Parameters Identification, Modeling and Experimental Verification of the New Smart Material Vacuum Packed Particles
Author(s) Piotr Bartkowski, Robert Zalewski
On-Site Speaker (Planned) Piotr Bartkowski
Abstract Scope In this work the material parameter identification, simulations and experimental verification of the new smart material Vacuum Packed Particles is presented. The considered material is a structure composed of granular material inside the plastomer coating. When the pressure inside is equal or higher than atmospheric the system behaves like a liquid, otherwise like an elasto-plastic solid with a temperature and strain rate dependence. By changing the underpressure inside the coating it is possible to control the mechanical properties of the structure in a real time. In this work, the machine learning approach to model parameter estimation is presented. Additionally, the proposed model is implemented into LS-DYNA code Finite Element Method. In order to verify the simulation results a corresponding experimental tests were conducted using optical strain measurement system. The comparison of the outcomes showed a good correlation.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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