On the topology optimization of variable-thickness fiber-reinforced plates

Two-field topology optimization algorithm is suggested for the optimal design of rib-stiffened fiber-reinforced plates. Additional nodal variables related to the local thickness of plate and local angle of fiber orientation are incorporated in a standard topology optimization approach. Minimal compliance design problems are solved for several examples with rectangular Reissner–Mindlin plates subjected to the transverse concentrated and distributed loads. Possibility for simultaneous assessments on the optimal geometry of curvilinear ribs and fibers trajectories is shown. Efficiency of algorithm is evaluated and compared to the conventional variable-thickness topology optimization results for isotropic plates.