The revised edition of this popular textbook reflects recent developments in the field, including applications to nanocomposites, composite grid structures, and composite sandwich structures, and features a review of basic mechanics of materials equations. Additional sections address applications of composite mechanics, a simplified laminated beam theory, elasticity and finite element models, and a phenomenological approach to understanding linear viscoelastic behavior of composites. Coverage also includes results from the recent World Wide Failure Exercise, revised ASTM standard test methods, and updated examples, homework exercises, material property tables, and references.