Quantifying Damage Accumulation Using State-of-the-Art FFT Method
A 3D microstructure, measured by high-energy x-ray diffraction microscopy, is used as an input to a parallelized viscoplastic Fast Fourier Transform code (VPFFT) to simulate a tensile test. Distributions of strain, damage accumulation, neighbor interactions, and Schmid factor mismatch throughout the microstructure are calculated. These results will form the basis of a direct comparison to microstructure maps that track plastic deformation in the real sample.
Asim Tewari, Satyam Suwas, Dinesh Srivastava, Indradev Samajdar and Arunansu Haldar
R. Pokharel et al., "Quantifying Damage Accumulation Using State-of-the-Art FFT Method", Materials Science Forum, Vols. 702-703, pp. 515-518, 2012