Adaptive wavelet-based approach for predicting the mechanical behavior of polycrystals
Gal Shmuel (CalTech), Kaushik Bhattacharya (California Institute of Technology)
Mechanics of Phase Transforming and Multifunctional Materials
Tue 2:40 - 4:00
CIT 219
In recent years, new developments in materials characterization techniques led to a huge amount of data on the microstructure of polycrystals. Simultaneously, improvements in the computational capabilities has enabled accurate full-field simulations for the micro mechanical fields developing in polycrystalline aggregates. These show that in elastic phenomena including plasticity and phase transformation, localized bands of deformation percolate in a complex way across various grains. This work is motivated by a desire to find an efficient representation for such fields. In particular, we focus on application of wavelet analysis. We present their main characteristics, and demonstrate the advantages of a new adaptive wavelet-based method.