required. pedagogical approach is to introduce first basic laminate concepts by directly into classical lamination theory,I have concluded that a better Jones.However,rather than beginning the study of laminates by jumping by Ashton,Halpin,and Petit,and Mechanics of Composite Materials by with that of previous textbooks such as the Primer on Composite Materials in Chapter 2 and the classical lamination theory in Chapter 7 is consistent relationships and transformation of properties for anisotropic materials terminology and nomenclature.For example,the coverage of stress-strain the 1960s and 1970s,and,where possible,I have tried to use the accepted have not changed since the first books on the subject were published in Some of the basic elements of composite mechanics covered in this book ticity,and partial differential equations are recommended,but not level material,earlier courses in advanced mechanics of materials,elas- ous exposure to linear algebra is highly desirable.For some of the graduate- to materials engineering,and ordinary differential equations,and previ- ties for the course are knowledge of mechanics of materials,introduction the basis for a two-quarter sequence by omitting some topics.Prerequisi- and which I have taught for the last four years.The book could also be second one-semester course,which is taken only by graduate students, journals and student research projects/presentations,form the basis of a 15 years.Chapters 8 through 10,along with selected papers from technical level course in mechanical engineering,which I have taught for the last Chapters 1 through 7 form the basis of a one-semester senior/graduate- introductory level all led to my decision to write this book. engineers,and the need for a new composite mechanics textbook at the the interdisciplinary nature of the subject,the need to re-educate practicing neers and for reference.The high level of interest in composite materials, new engineers,but also for the continuing education of practicing engi- posite material mechanics should be useful not only for the education of ing engineers to have had no training in this area,so a textbook in com- oriented.Composite materials technology is new enough for many work- aspects of composites.Principles of Composite Material Mechanics is mechanics subject tend to emphasize either the mechanics or the materials science of students taking courses in this area is steadily increasing.Books on the Composite materials is truly an interdisciplinary subject,and the number Preface to First Edition