Topology optimization of piezoelectric structures : micro-actuators and energy harvesters

International audienceThis paper reviews the primary research effortsconducted within the AS2M department of the FEMTO-STinstitute, focusing on topology optimization of piezoelectricstructures. The paper primarily highlights the principle andthe possibilities offered by topology optimization with aspecific emphasis on the SIMP approach (Solid IsotropicMaterial with Penalization). Then, the design processes ofpiezoelectric micro-actuators and energy harvesters are described.The optimized piezoelectric structures are presentedand the improvements over classical designs are assessed.Finally, the paper discusses the feasibility and the potentialof multi-material topology optimization