Syllabus

Module 1: Dislocation Theory and Tensile Testing
Defects in crystalline materials, Burgers vector, Deformation by slip, Types of dislocations, Dislocation reaction, Cross slip and climb of dislocations, Dislocation sources and dislocation reactions.
Atomistic basis of elasticity and plasticity, Yielding Criteria for crystalline material. Engineering and True stress-true strain curve, Strain hardening coefficient, Instability in tension, Effect of strain rate and temperature on flow properties, Strain rate sensitivity.

Module 2: Fracture and Fracture Mechanics
Theoretical cohesive strength of metals, Griffith’s theory of brittle fracture, Mechanism of brittle and ductile fracture, Fractographic aspects of fracture, Notch effects. Strain energy release rate, Stress intensity factor, Plane strain and Plane stress fracture toughness, Crack-tip plastic zone, Fracture toughness determination with elastic plastic analysis, Design approach, Microstructural aspect of fracture toughness

Module 3: Fatigue
S-N curve, Effect of mean stress, Fatigue strain life approach, High and Low cycle fatigue, Cofin-Manson’s equation, Stress life approach, Basquin’s equation, Fatigue crack growth rate, Paris law

Module 4: Impact Behaviour
Notched bar impact test, Instrumented Charpy test, Impact Toughness, Transition temperature phenomenon, Factors affecting transition temperature

Module 5: Creep
Time-dependent mechanical behaviour, Creep curves, Stress rupture test, Life prediction, Mechanisms of creep deformation, High temperature alloys, Case studies of some engineering failures

To develop a fundamental understanding of dislocation theory and stress–strain behavior of materials under tensile loading.

To understand the principles and mechanisms of fracture and fracture mechanics in real world components.

To analyse the behaviour of materials under cyclic and impact loading conditions.

To evaluate time-dependent failure mechanisms such as creep in materials supported by systematic failure analysis approaches.

Developing basic concepts of dislocations present in crystal systems.

Assessing tensile stress–strain responses to understand the strength and ductility of materials.

Integrating fracture mechanics principles to improve failure resistance in component design.

Investigating the effect of cyclic loading on the fatigue crack initiation and growth.

Analyzing the effects of impact loads and environmental conditions on material failure.

Interpreting creep mechanisms and their influence on long-term performance, especially in high-temperature alloys.

George E. Dieter, Mechanical Metallurgy, McGraw Hill Education

Thomas H. Courtney, Mechanical Behavior of Materials, Waveland Press

Richard W. Hertzberg, Deformation and Fracture Mechanics of Engineering Materials, Wiley

Materials Science and Engineering A

Acta Materialia