Anna University B.Tech ML (R13) 4th Sem Mechanical Behaviour of Materials Detailed Syllabus

Mechanical Behaviour of Materials Syllabus for B.Tech 4th sem is covered here. This gives the details about credits, number of hours and other details along with reference books for the course.

The detailed syllabus for Mechanical Behaviour of Materials B.Tech (R13) fourthsem is as follows

OBJECTIVES

The students having studied the basics of material structures and properties and strength of materials, shall be introduced to dislocation theories of plasticity behaviour, various strengthening mechanisms and fracture mechanics. It will expose students to failure mechanisms due to fatigue and creep as well as their testing methods.

UNIT I : ELASTIC AND PLASTIC BEHAVIOUR    [10 Hours]
Elastic behavior of materials – Hooke’s law, plastic behaviour: dislocation theory – Burger’s vectors and dislocation loops, dislocations in the FCC, HCP and BCC lattice, stress fields and energies of dislocations, forces on and between dislocations, dislocation climb, intersections of dislocations, Jogs, dislocation sources, multiplication of dislocations, dislocation pile-ups, Slip and twinning.

UNIT II: STRENGTHENING MECHANISMS      [10 Hours]
cold working, grain size strengthening. Solid solution strengthening. martensitic strengthening, precipitation strengthening, dispersion strengthening, fibre strengthening, examples of above strengthening mechanisms from ferrous and non-ferrous systems, simple problems. Yield point phenomenon, strain aging and dynamic strain aging

UNIT III : FRACTURE AND FRACTURE MECHANICS       [9 Hours]
Types of fracture, basic mechanism of ductile and brittle fracture, Griffith’s  theory of brittle fracture, Orowan’s modification. Izod and Charpy Impacts tests, Ductile to Brittle Transition Temperature (DBTT), Factors affecting DBTT, determination of DBTT. Fracture mechanics-introduction, modes of fracture, stress intensity factor, strain energy release rate, fracture toughness and determination of KIC, introduction to COD, J integral.

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[TOTAL (L:45+T:15): 60 PERIODS]

OUTCOMES

• Students will demonstrate and understanding of the mechanical properties and behaviour of materials.
• In the concept of linear elastic fracture mechanics and estimate the effects of cracks in material and structure.
• Students will demonstrate the ability to identify engineering problem in using plastic deformation, fatigue, fracture and creep
• Assues and describe the mechanism loading to failure when provided with a failure example.

TEXT BOOKS:

• Dieter, G.E., “Mechanical Metallurgy”, McGraw-Hill, SI Edition, 1995.
• Davis. H. E., Troxell G.E., Hauck.G. E. W., “The Testing of Engineering Materials”, McGraw-Hill, 1982.

REFERENCES

• Hayden, H. W. W. G. G. Moffatt, J. Moffatt and J. Wulff, The Structure and Properties of Materials, Vol.III, Mechanical Behavior, John Wiley & Sons, New York, 1965.
• Wulff, The Structure and Properties of Materials, Vol. III “Mechanical Behavior of Materials”, John Wiley and Sons, New York, USA, 1983.
• Honey combe R. W. K., “Plastic Deformation of Materials”, Edward Arnold Publishers, 1984.
• Suryanarayana, A. V. K., “Testing of Metallic Materials”, Prentice Hall India, New Delhi, 1979.

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