About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials IX
|
Presentation Title |
Dynamic-tensile-extrusion for Investigating Large Strain and High Strain Rate Behavior |
Author(s) |
Eric N. Brown, George T Gray, Nicola Bonora, Carl P Trujillo |
On-Site Speaker (Planned) |
Eric N. Brown |
Abstract Scope |
Dynamic-Tensile-Extrusion (Dyn-Ten-Ext) is a novel test method for the investigation of material
response under extreme tensile conditions, comprising the combined conditions of large tensile
strains and high strain rates. The technique, in general, generates stable extruded jets that are
observed via high-speed photography. These jets may accumulate subcritical damage during
deformation, revealing damage processes that may only activate in a principally tensile
deformation. Dyn-Ten-Ext produces spatially and temporally heterogeneous deformation fields,
making it an integrated test, analogous to Taylor Impact. The range of strains and strain rates
that evolve throughout the test, combined with the simple well defined boundary conditions,
produce outstanding datasets for the validation of material models under conditions not
accessible by classic testing techniques. This work presents an overview of Dyn-Ten-Ext as a
technique for investigating extreme tensile deformation and damage in metals (including
copper, depleted uranium, and tantalum) and polymers (including polyethylene,
polyurethane, polytetrafluoroethylene, and polycarbonate). |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Mechanical Properties, Modeling and Simulation |