About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Heterostructured and Gradient Materials (HGM IV): Tailoring Heterogeneity for Superior Properties
|
Presentation Title |
Analysis of Inertially Dampened Structure in High Strain Rate Impacts |
Author(s) |
Trenin Bayless, Jerome Downey |
On-Site Speaker (Planned) |
Trenin Bayless |
Abstract Scope |
A continuation of computational studies on structures consisting of highly varied internal material densities when subjected to extreme strain rates. A detailed characterization of sintered polyethylene semi-crystals with embedded high density tungsten carbide inserts of varied geometry was conducted in order to verify the results of an earlier computational study. Examination under high strain rates in high energy impacts reveal variability in materials properties based on density, geometry, and size of tungsten carbide inserts. The following study provides a path forward for the creation of both physical and computational analysis focused on heterogeneous composite designs. In the instance of high strain rate impacts, the appearance of stress fields act to redirect the kinetic energy of an impactor; producing substantial increases in overall impact resistance of the composite material when compared to pure polyethylene structures. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Characterization, Composites |