| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling, Simulation, and Machine Learning: Microstructure, Mechanics, and Process
|
| Presentation Title |
Simulation of Anisotropic Mechanical Behavior of Additively Manufactured Ti-6Al-4V Wall Structures using VPSC |
| Author(s) |
Rajib Halder, Anthony D Rollett, Jake Benzing |
| On-Site Speaker (Planned) |
Rajib Halder |
| Abstract Scope |
This work explores the effect of processing parameters on texture development in Ti-6Al-4V wall components fabricated by wire-feed Directed Energy Deposition process, one of the additive manufacturing techniques. Microstructure and texture were characterized using scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD). An open-source software package, MTEX, was used to perform grain reconstruction, orientation analysis, variants selection analysis, and generate IPF maps. A strong variation in texture was observed along the build direction in laser hot wire deposited single walls. A viscoplastic self-consistent (VPSC) model was used to simulate the deformation response under uniaxial tension applied along vertical, horizontal, and diagonal directions with respect to the build direction of the single wall component. An excellent fitting was achieved between the simulated and experimental stress-strain curves. VPSC simulation successfully captured the tension-compression asymmetry and the anisotropic response of Ti-6Al-4V single walls. |