About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
Efficient Computational Framework for Image-based Micromechanical Analysis of Additively Manufactured Ti-6Al-4V Alloys |
Author(s) |
Somnath Ghosh |
On-Site Speaker (Planned) |
Somnath Ghosh |
Abstract Scope |
The increase in additively manufactured Ti alloys in high-performance industrial applications has necessitated the development of robust computational models for their qualification and certification. Physics-based micromechanical models, relating the AM-processed material microstructure and defect state with the overall material response and life, can play an important role in reducing uncertainty in component behavior. This paper develops a novel image-based crystal plasticity finite element model (CPFEM) for efficient micromechanical simulation of the additively manufactured Ti-6Al-4V alloy, whose Widmanstätten microstructure is characterized by 12 HCP alpha lath variants in the parent beta grain. A unique feature is the creation of an efficient crystal plasticity framework for the parent beta grain polycrystalline ensembles with parametric representation of the alpha lath statistics of size, shape, orientation, and crystallography. Defects in the form of voids are represented at two scales. Parametric studies are conducted to understand the effect of defects on overall response. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Modeling and Simulation, ICME |