CE1262 STRENGTH OF MATERIALS SYLLABUS B.E. MECHANICAL ENGINEERING ANNA UNIVERSITY TIRUCHIRAPPALLI/TRICHY

ANNA UNIVERSITY CHENNAI:: CHENNAI 600 025
CURRICULUM 2004
B.E. MECHANICAL ENGINEERING
SEMESTER - IV CE1262 STRENGTH OF MATERIALS
(Common to Mechanical, Production, Mechatronics, Automobile and Metallurgy)

Objectives
To gain knowledge of simple stresses, strains and deformation in components due to external loads.
To assess stresses and deformations through mathematical models of beams, twisting bars or combinations of both.
Effect of component dimensions and shape on stresses and deformations are to be understood.
The study would provide knowledge for use in the design courses

1. Stress, Strain And Deformation of Solids 9
Rigid and Deformable bodies – Strength, Stiffness and Stability – Stresses; Tensile, Compressive and Shear – Deformation of simple and compound bars under axial load – Thermal stress – Elastic constants – Strain energy and unit strain energy – Strain energy in uniaxial loads.

2. Beams - LOADS AND STRESSES 9
Types of beams: Supports and Loads – Shear force and Bending Moment in beams – Cantilever, Simply supported and Overhanging beams – Stresses in beams – Theory of simple bending – Stress variation along the length and in the beam section – Effect of shape of beam section on stress induced – Shear stresses in beams – Shear flow.

3. Torsion 9
Analysis of torsion of circular bars – Shear stress distribution – Bars of Solid and hollow circular section – Stepped shaft – Twist and torsion stiffness – Compound shafts – Fixed and simply supported shafts – Application to close-coiled helical springs – Maximum shear stress in spring section including Wahl Factor – Deflection of helical coil springs under axial loads – Design of helical coil springs – stresses in helical coil springs under torsion loads

4. Beam deflection 9
Elastic curve of Neutral axis of the beam under normal loads – Evaluation of beam deflection and slope : Double integration method, Macaulay Method, and Moment-area Method –Columns – End conditions – Equivalent length of a column – Euler equation – Slenderness ratio – Rankine formula for columns

5. Analysis of stresses in two dimensions 9
Biaxial state of stresses – Thin cylindrical and spherical shells – Deformation in thin cylindrical and spherical shells – Biaxial stresses at a point – Stresses on inclined plane – Principal planes and stresses – Mohr’s circle for biaxial stresses – Maximum shear stress - Strain energy in bending and torsion.

Tutorials 15

TOTAL : 60
TEXT BOOKS
1. Popov E.P, “Engineering Mechanics of Solids”, Prentice-Hall of India, New Delhi, 1997.
2. Beer F. P. and Johnston R, “Mechanics of Materials”, McGraw-Hill Book Co, Third Edition, 2002.

REFERENCES

1. Nash W.A, “Theory and problems in Strength of Materials”, Schaum Outline Series, McGraw-Hill Book Co, New York, 1995
2. Kazimi S.M.A, “Solid Mechanics”, Tata McGraw-Hill Publishing Co, New Delhi, 1981
3. Ryder G.H, “Strength of Materials”, Macmillan India Ltd., Third Edition, 2002
Ray Hulse, Keith Sherwin & Jack Cain, “Solid Mechanics”, Palgrave ANE Books, 2004.
Singh D.K “Mechanics of Solids” Pearson Education 2002.
6. Timoshenko S.P, “Elements of Strength of Materials”, Tata McGraw-Hill, New Delhi 1997.

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