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Wiwattananon, P. (author), Bergsma, O.K. (author), Bersee, H.E.N. (author)Piezoelectric materials possess nonlinear behavior when actuated in a large electric field and show a large deflection when embedded inside a composite laminate such as a LIghtweight Piezoelectric Composite Actuator. Linear and nonlinear COMSOL multi-physics finite element models were developed and validated using the actuation response of three...journal article 2016