| Abstract Scope |
Crystal plasticity (CP) Fast Fourier Transform (FFT)-based methods, originally proposed for composites [1] and extended to polycrystals (the most recent formulation, including non-local large-strain elasto-viscoplasticity, reported in [2]) are attractive due their higher efficiency compared with CP-Finite Elements, and their direct use of voxelized microstructural images. In this talk, we will report recent progress on FFT-based polycrystal plasticity, with emphasis in novel implementations, including thermo-elasto-visco-plasticity, strain-gradient plasticity, thermal conductivity, and dynamic effects. We will show applications of these methods to: micromechanics of nano-metallic laminates, wave propagation in heterogeneous materials and integration with 3-D characterization methods.
[1] Moulinec, H., Suquet, P., A numerical method for computing the overall response of nonlinear composites with complex microstructure. CMAME 157, 69, (1998).
[2] Zecevic M., Lebensohn R.A., Capolungo L., Non-local large-strain FFT-based formulation and its application to interface-dominated plasticity of nano-metallic laminates. JMPS 173, 105187 (2023). |