PeriFast/Corrosion: A 3D Pseudospectral Peridynamic MATLAB Code for Corrosion

We introduce PeriFast/Corrosion, a MATLAB code that uses the fast convolution-based method (FCBM) for peridynamic (PD) models of corrosion damage. The FCBM convolutional structure PD equations and employs Fast Fourier transform (FFT) to achieve computational complexity $$O(NlogN)$$ . PeriFast/Corrosion has significantly lower memory allocation needs, $$O(N)$$ , compared with, example, meshfree with direct summation requires $$O({N}^{2})$$ model are briefly reviewed, detailed is presented. efficiently solves 3D uniform (example copper) pitting stainless steel) problems multiple growing merging pits, set in complicated shape sample. Discussions on possible immediate extensions other damage provided. branch PeriFast codes freely available GitHub [1].