%K Pure Bending; Energy Storage; Composite Material; Extruded Cross-Section; Design Optimization %I Scientific Research Publishing %P 53-66 %T Optimization of Energy Density in Girders under Pure Bending with an Extruded Monolithic Cross-Section %R 10.4236/wjm.2019.93004 %X This article proposes use of extruded compound materials with optimized resistant cross-sections as an alternative, in this case, seeking the maximum energy density as a design criterion. The advantage of this proposal is that it extends the life cycle and decreases fatigue issues. %N 3 %J World Journal of Mechanics %L upm63924 %V 9 %D 2019 %A Daniel Fernandez Caballero %A Víctor Rodríguez de la Cruz %A Juan Manuel Muñoz Guijosa