Mechanical behavior of materials : fundamentals analysis and calculations Part I . Materials: Deformation Testing and Strengthening Chapter 1. Introduction Chapter 2. Physics of Deformation Chapter 3. Mechanical Testing and Properties of Materials Chapter 4. Strengthening Mechanisms in Metals Alloys Chapter 5. Materials in Engineering Part II. Stresses Strains and Deformation Behaviors Chapter 6. Stress Strain Relations and Deformation Models Chapter 7. Elasticity and Viscoelasticity Chapter 8. Complex Principal Stresses and Strains Chapter 9. Plasticity and Superplasticity – Theory and Applications Chapter 10. Torsion in Shafts Part III. Failure Design and Composites Behavior Chapter 11. Failures Theories and Design Chapter 12. Fracture Mechanics and Design Chapter 13. Fatigue Behavior of Materials Chapter 14. Creep Behavior of Materials Chapter 15. Mechanical Behavior of Composite Materials. This textbook supports a range of core courses in undergraduate materials and mechanical engineering curricula given at leading universities globally. It presents fundamentals and quantitative analysis of mechanical behavior of materials covering engineering mechanics and materials deformation behavior fracture mechanics and failure design. This book provides a holistic understanding of mechanical behavior of materials and enables critical thinking through mathematical modeling and problem solving. Each of the 15 chapters first introduces readers to the technologic importance of the topic and provides basic concepts with diagrammatic illustrations; and then its engineering analysis mathematical modelling along with calculations are presented. Featuring 200 end of chapter calculations worked examples 120 diagrams 260 equations on mechanics and materials the text is ideal for students of mechanical materials structural civil and aerospace engineering. • Provides a lucid and rigorous treatment of the physics of deformation fracture mechanics fatigue and creep using design approach; • Maximizes reader understanding of complex stress and strain situation applications of plasticity to sheet metal forming industrial practice elasticity viscoelasticity and the mechanical behavior of composites; • Reinforces concepts covered with 200 solved problems worked examples and 120 diagrams illustrations; • Features important materials’ properties data in context wherever applicable.