This textbook fits courses on mechanical behavior of materials in mechanical engineering and materials science and includes numerous examples and problems‎.‎ It emphasizes quantitative problem solving‎.‎ This text differs from others because the treatment of plasticity emphasizes the interrelationship of the flow‎,‎ effective strain‎,‎ and effective stress and their use in conjunction with yield criteria to solve problems‎.‎ The treatment of defects is new‎,‎ as is the analysis of particulate composites‎.‎ Schmid‎'‎s law is generalized for complex stress states‎.‎ Its use with strains allows for prediction of R‎-values for textures‎.‎ Of note is the treatment of lattice rotations related to deformation textures‎.‎ The chapter on fracture mechanics includes coverage of Gurney‎'‎s approach‎.‎ Among the highlights in this new edition are the treatment of the effects of texture on properties and microstructure in Chapter 7‎,‎ a new chapter ‎(‎12‎)‎ on discontinuous and inhomogeneous deformation‎,‎ and the treatment of foams in Chapter 21‎.‎