About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Algorithm Development in Materials Science and Engineering
|
Presentation Title |
L-12: Simulation of Compressive Stress-strain Curve for Additive Manufactured Ti6Al4V Cuboctahedron Cellular Structure |
Author(s) |
Annadurai Dhinakar, Chen Jhewn-Kuang |
On-Site Speaker (Planned) |
Chen Jhewn-Kuang |
Abstract Scope |
In this study, compression test done for Ti-6Al-4V cuboctahedron cellular sample. In the experiment, by varying sample porosity number for Selective Laser Melted structure we ended up with brittle and non-linear response. Simulation is performed using Bi-Linear material model with ANSYS workbench. Different simulations are modeled to include non-linear and plastic effects in the results. Results of compression simulation with strain rate of 2.08E-03 /sec and 50% strain are extracted. The usual way of computing stress from force reaction and strain from total deformation does not fit with experiment exactly. To study the equivalent Stress/Strain directly, the numbers of solid element distributed at each Stress/Strain levels is listed and the solid density of the structure is used to transform the Equivalent Stress/Strain for finite element into Stress/Strain for cellular structure. Experimental Stress-Strain curve is compared with all the Stress-Strain curves derived from the various models described in Static Structural module. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |