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In this article, the performance of various piezoelectric materials is simulated for the unimorph cantilevertype piezoelectric energy harvester. The finite element method (FEM) is used to model the piezolaminated unimorph cantilever structure. The first-order shear deformation theory (FSDT) and linear piezoelectric theory are implemented in finite element simulations. The genetic algorithm (GA) optimization approach is carried out to optimize the structural parameters of mechanical energy-baseddoi:10.1016/j.jascer.2014.02.001 fatcat:cjucdt3fabewrlptuvumsxfjay