| Issue |
EPJ Web Conf.
Volume 250, 2021
DYMAT 2021 - 13th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|
|
|---|---|---|
| Article Number | 02031 | |
| Number of page(s) | 2 | |
| Section | Modelling & Numerical Simulation | |
| DOI | https://doi.org/10.1051/epjconf/202125002031 | |
| Published online | 09 September 2021 | |
https://doi.org/10.1051/epjconf/202125002031
Programming Strain Rate Dependency into Mechanical Metamaterials
1
Fraunhofer Ernst-Mach-Institute for High-Speed Dynamics, EMI, Freiburg i. Br., Germany
2
Institute for Sustainable Systems Engineering, INATECH, Albert-Ludwigs-Universität-Freiburg, Freiburg i. Br., Germany
* Corresponding author: sankalp.patil@inatech.uni-freiburg.de
Published online: 9 September 2021
This work presents an approach to introduce significant strain rate sensitivity into metallic metamaterials that are manufactured via additive manufacturing, where the base material employed will typically have a weak strain rate sensitivity. Here, we employ friction between the rough surfaces as the strain-rate dependent mechanism, whose magnitude is tunable by optimizing the geometry. The design along with the preliminary simulation results of the friction unit cell is presented. This work will quantify the effects of geometrical parameters on the dissipated energy.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.