Annotation Reinforcements are an integral part of all composites and the quality and performance of the composite can be optimized by modeling the type and structure of the reinforcement before molding.Composite reinforcements for optimum performancereviews the materials, properties and modeling techniques used in composite production and highlights their uses in optimizing performance.Part one covers materials for reinforcements in composites, including chapters on fibers, carbon nanotubes and ceramics as reinforcement materials. In part two, different types of structures for reinforcements are discussed, with chapters covering woven and braided reinforcements, three-dimensional fiber structures and two methods of modeling the geometry of textile reinforcements: WiseTex and TexGen. Part three focuses on the properties of composite reinforcements, with chapters on topics such as in-plane shear properties, transverse compression, bending and permeability properties. Finally, part four covers characterizing and modeling of reinforcements in composites, with chapters focusing on such topics as microscopic and mesoscopic approaches, X-ray tomography analysis and modeling reinforcement forming processes.