Fracture Mechanics

This book discusses the basic principles and traditional applications of fracture mechanics, as well as the cutting-edge research in the field over the last three decades in current topics like composites, thin films, nanoindentation, and cementitious materials.

Experimental methods play a major role in the study of fracture mechanics problems and are used for the determination of the major fracture mechanics quantities such as stress intensity factors, crack tip opening displacements, strain energy release rates, crack paths, crack velocities in static and dynamic problems. These methods include electrical resistance strain gauges, photoelasticity, interferometry techniques, geometric and interferometry moiré, and the optical method of caustics.

Furthermore, numerical methods are often used for the determination of fracture mechanics parameters. They include finite and boundary element methods, Green’s function and weight functions, boundary collocation, alternating methods, and integral transforms continuous dislocations.

This third edition of the book covers the basic principles and traditional applications, as well as the latest developments of fracture mechanics. Featuring two new chapters and 30 more example problems, it presents a comprehensive overview of fracture mechanics, and includes numerous examples and unsolved problems. This book is suitable for teaching fracture mechanics courses at the undergraduate and graduate levels. A “solutions manual” is available for course instructors upon request.

02

02

Solutions Manual

03

02

New developments in the applications of fracture mechanics to engineering problems have taken place in the last years. Composite materials have extensively been used in engineering problems. Quasi-brittle materials including concrete, cement pastes, rock, soil, etc. all benefit from these developments. Layered materials and especially thin film/substrate systems are becoming important in small volume systems used in micro and nanoelectromechancial systems (MEMS and NEMS). Nanostructured materials are being introduced in our every day life. In all these problems fracture mechanics plays a major role for the prediction of failure and safe design of materials and structures. These new challenges motivated the author to proceed with the second edition of the book.

The second edition of the book contains four new chapters in addition to the ten chapters of the first edition. The fourteen chapters of the book cover the basic principles and traditional applications, as well as the latest developments of fracture mechanics as applied to problems of composite materials, thin films, nanoindentation and cementitious materials. Thus the book provides an introductory coverage of the traditional and contemporary applications of fracture mechanics in problems of utmost technological importance.

With the addition of the four new chapters the book presents a comprehensive treatment of fracture mechanics. It includes the basic principles and traditional applications as well as the new frontiers of research of fracture mechanics during the last three decades in topics of contemporary importance, like composites, thin films, nanoindentation and cementitious materials. The book contains fifty example problems and more than two hundred unsolved problems. A "Solutions Manual" is available upon request for course instructors from the author.

04

02

Chapter 1. Introduction.- Chapter 2. Linear Elastic Stress Field in Cracked Bodies.- Chapter 3. Elastic-Plastic Stress Field in Cracked Bodies.- Chapter 4. Crack Growth Based on Energy Balance.- Chapter 5. Critical Stress Intensity Factor Fracture Criterion.- Chapter 6. J-Integral and Crack Opening Displacement Fracture Criteria.- Chapter 7. Strain Energy Density Failure Mixed-Mode Crack Growth.- Chapter 8. Dynamic Fracture.- Chapter 9. Fatigue and Environment-Assisted Fracture.- Chapter 10. Micromechanics of Fracture.- Chapter 11. Composite Materials.- Chapter 12. Thin Films.- Chapter 13. Nanoindentation.- Chapter 14. Cementitious Materials.- Chapter 15. Experimental Methods.- Chapter 16. Numerical Methods.

13

02

Dr. Emmanuel E. Gdoutos is a member of the Academy of Athens, the most prestigious academic institute in Greece; a Professor Emeritus of the Democritus University of Thrace, Greece; Adjunct Professor at Northwestern University, USA; and Distinguished Clark Millikan Visiting Professor at California Institute of Technology, USA.

He is member of the European Academy of Sciences and Arts, of Academia Europaea, and of the European Academy of Sciences. He is a foreign member of the Russian Academy of Engineering, the International Academy of Engineering, and the Russian and Bulgarian Academies of Sciences. He is a fellow and honorary member of various international societies. He was awarded a Doctorate Honoris Causa from the Russian Academy of ...