DySAAB stands for Dynamic Stiffness Analysis of Advanced Beams. It provides exact natural frequencies and mode shapes of solid isotropic, multi-layered and thin-walled beams for arbitrary boundary conditions. DySAAB combines, in fact, CUF with the Dynamic Stiffness Method (DSM).


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Strong-form governing equations and solutions for variable kinematic beam theories with practical applications 
Alfonso Pagani, City University London, 2016.