Fracture Mechanics

Introduction and overview, Concepts of fracture mechanics and strength of materials, Elements of solid mechanics, Elasticity and plasticity, Incremental plasticity and deformation theory.

Elastic crack-tip fields, Basic concepts of linear elastic fracture mechanics, Griffth’s theory, stress intensity factor, Energy release rate, Plastic zone and fracture toughness, path invariant integrals and numerical approach.

Plastic crack-tip fields, Mode-I fields and fracture criterion, Engineering approach to plastic fracture, J- integral approaches and numerical concepts, Tearing modulus, Time dependent fracture, non-linear aspects of fatigue crack growth, Theoretical models, Fatigue cracks in welds, standard tests and testing procedures.

Brittle fracture of welded structures, Notch toughness, weld cracks and joint restrains, Weld defects and service behaviour, Application of fracture mechanics concepts and limitations, Weld cracking tests and elimination of joint restraints, Residual stress and its interaction in fracture behaviour, Numerical approaches for estimation of fracture parameters.

Books:

1. Fracture Mechanics: Fundamentals and Applications Anderson, T. L CRC Press

2. Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue Dowling, Norman E Dowling Prentice Hall

3. Advanced Fracture Mechanics Kanninen, Melvin F Popelar, Carl H Oxford University Press

4. Analytical Fracture Mechanics Unger, David J Dover Publications 15 COMPUTER INTEGRATED MANUFACTURING (CIM)