This section describes the design approach and materials used to ensure a stable pseudo-ductile failure of the hybrid composites. A previous study presented an analytical method that demonstrated the importance of LS fiber fragmentation and dispersed delamination in achieving the pseudo-ductile behavior of the hybrid composites during tensile loading. Hybrid architecture and the proportion of LS and HS fibers play a crucial role in achieving LS fiber fragmentation and dispersed delamination. In addition, the thickness of LS fibers affects the pseudo-ductile behavior of the composite. The outer HS fiber layers must be thick and strong enough to take the full load after LS fiber failure. Another study, showed that the fiber volume fraction (Vf) of two different fibers with different failure strain values is important for achieving a progressive failure of the hybrid composites.