Mechanical Behaviour of Materials

Strength of materials- basic assumptions, elastic and plastic behaviour, stress–strain relationship for elastic behaviour, elements of plastic deformation of metallic materials. Mohr’s circle, yielding theories


Elements of theory of plasticity, dislocation theory properties of dislocation, stress fields around dislocations, application of dislocation theory to work hardening, solid solution strengthening, grain boundary strengthening and dispersion hardening


Ductile and brittle fracture, Charpy and Izod testing, significance of DBTT, ECT, NDT and FATT; elements of  fractography - Griffith’s theory, LEFM– COD and J integral – determination of KIC, COD and J integral


Characteristics of fatigue failure, initiation and propagation of fatigue cracks, factors affecting fatigue strength and methods of improving fatigue behaviour – testing analysis of fatigue data, mechanics of fatigue crack propagation, corrosion fatigue


Introduction to creep - creep mechanisms, creep curve, variables affecting creep, accelerated creep testing, development of creep resistant alloys, Larsen Miller parameter - Manson Hafred parameter


1.      Dieter G. E., ‘Mechanical Metallurgy’, 3rd Edition, McGraw Hill, 1988


2.      Suryanarayana AVK., ‘Testing of Metallic Materials’, Prentice Hall India, 1979.


3.      Rose R. M., Shepard L. A., Wulff J., ‘Structure and Properties of Materials’, Volume III, 4th Edition, John  Wiley, 1984