Mechanics of Composite, Hybrid, and Multifunctional Materials, Volume 5 of the Proceedings of the 2018 SEM Annual Conference & Exposition on Experimental and Applied Mechanics, the fifth volume of eight from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on a wide range of areas, including:Recycled Constituent CompositesNanocompositesMechanics of CompositesFracture & Fatigue of CompositesMultifunctional MaterialsDamage Detection & Non-destructive EvaluationComposites for Wind Energy & Aerospace ApplicationsComputed Tomography of CompositesManufacturing & Joining of CompositesNovel Developments in Composites