PSI - Issue 33

Boris Fedulov et al. / Procedia Structural Integrity 33 (2021) 843–849 Fedulov B.N., Fedorenko A.N. / Structural Integrity Procedia 00 (2019) 000–000

846

4

bottom ends fixed with unite pressure applied on the bottom line (Fig. 1). As a density restriction, a 20% of initial volume has been used.

Fig. 1. Initial optimization volume and boundary conditions (2D)

Fig. 2 shows results of optimization. Optimum shape of the structure looks like conventional bridge. Orientation of fibers follow structural bars, which appeared during optimization. Complex distribution of the material orientation can be found near fixed points. There is a high vertical compressive load, what makes optimization algorithm to move reinforcements up into vertical position.

Fig. 2. Result of optimization (2D); and (deg.)