Deformation and fracture mechanics of engineering materials Hertzbergs 5th edition of Deformation & Fracture Mechanics of Engineering Materials offers several new features including a greater number and variety of homework problems using more computational software; more real world applications of theories case studies; and less coverage of metals. Furthermore this edition has more focus shifted toward emerging technologies (nanotechnology micro mechanical systems) dislocations macroscale plasticity; nanomaterials biomaterials smart materials and a new chapter on products liability recall supported by vast majority of survey respondents