|About this Abstract
||7th World Congress on Integrated Computational Materials Engineering (ICME 2023)
||3D Full-field Crystal Plasticity Simulations on an Explicit Microstructure: How accurate are We
||Nikhil Prabhu, Martin Diehl
|On-Site Speaker (Planned)
Digital twins based on full field crystal plasticity models serve as an alternative to expensive and time-consuming micro-mechanical experiments.
These experiments are, however, still needed as benchmarks for the predictive quality of the modeling approaches.
Here we use experimental data of additively manufactured IN625 alloy provided by the Air Fore Research Laboratory as part of a modeling challenge to study the performance of full field crystal plasticity simulations using DAMASK.
In particular, we investigate how the choice of the constitutive model and the incorporation of eigenstrains influence the agreement between simulation and experiment.
The challenge of initializing the simulation with a realistic field of eigenstrains when only data from a few grains is available is tackled through the use of an iterative scheme that results in an equilibrated eigenstrain field that is in agreement with the experimental data.