Course Details
Subject {L-T-P / C} : ME6144 : Fatigue and Fracture of Engineering Components { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Haraprasad Roy
Syllabus
Mechanisms of crack growth and fracture Basic modes of fracture Stress Concentration factor Griffith's theory of brittle fracture Irwin's theory of fracture in elastic-plastic materials Theories of linear elastic plastic fracture mechanics (LEFM) Stress intensity factor, SIF and Energy release rate Fracture toughness, stress distribution at crack tip: plane stress, plane strain cases Crack tip plasticity. Types of fatigue loading, Fatigue test methods Endurance limit and S-N diagram Various failure relations Factors influencing fatigue strength Influence of stress concentration Fatigue crack growth initiation and propagationEmpirical relations describing crack growth Crack closure Fatigue Life calculations methods of increasing fatigue life Retardation models Fatigue at low temperature.
Course Objectives
- NA
Course Outcomes
CO1: Knowledge will be gained on the subject matter. <br />CO2: Able to apply the theory to practical problems. <br />CO3: Knowledge will be enhanced to implement the concept for product development.
Essential Reading
- S Suresh, Fatigue of Materials, Cambridge University Press
- D. Broek, Elementary Engineering Fracture Mechanics, Kluwer Academic Publishers
Supplementary Reading
- T L Anderson, Fracture Mechanics: Fundamentals and Applications, CRC Press
- P. Kumar, Elements of Fracture Mechanics, Wheeler Publishing