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CE2252 STRENGTH OF MATERIALS
How to study this subject
OBJECTIVE
This subject is useful for a detailed study of forces and their effects along with some suitable
protective measures for the safe working condition. This knowledge is very essential for an
engineer to enable him in designing all types of structures and machines.
UNIT I ENERGY PRINCIPLES 9+3
Strain energy and strain energy density – strain energy in traction, shear in flexure and torsion –
castigliano’s theorems – principle of virtual work – application of energy theorems for computing
deflections in beams and trusses – Maxwell’s reciprocal theorems
UNIT II INDETERMINATE BEAMS 9+3
Propped cantilever and fixed beams-fixed end moments and reactions for concentrated load
(central, non central), uniformly distributed load, triangular load (maximum at centre and
maximum at end) – theorem of three moments – analysis of continuous beams – shear force
and bending moment diagrams for continuous beams – slope & deflections in continuous
beams (qualitative study only)
UNIT III COLUMNS 9+3
Eccentrically loaded short columns – middle third rule – core section – columns of
unsymmetrical sections – (angle channel sections) – Euler’s theory of long columns – critical
loads for prismatic columns with different end conditions; Rankine-Gordon formula for
eccentrically loaded columns – thick cylinders – compound cylinders.
UNIT IV STATE OF STRESS IN THREE DIMENSIONS 9+3
Spherical and deviatory components of stress tensor - determination of principal stresses and
principal planes – volumetric strain – dilatation and distortion – theories of failure – principal
stress dilatation – principal strain – shear stress – strain energy and distortion energy theories –
application in analysis of stress, load carrying capacity and design of members – residual
stresses34
UNIT V ADVANCED TOPICS IN BENDING OF BEAMS 9+3
Unsymmetrical bending of beams of symmetrical and unsymmetrical sections – curved beams –
Winkler Bach formula – stress concentration – fatigue and fracture.
TOTAL (L:45+T:15): 60 PERIODS
TEXT BOOKS
1. Egor P Popov, “Engineering Mechanics of Solids”, Prentice Hall of India, New Delhi,
2003
2. Rajput R.K. Strength of Materials, S.Chand&company Ltd., New Delhi - 2006
REFERENCES
1. Kazimi S.M.A, “Solid Mechanics”, Tata McGraw-Hill Publishing Co., New Delhi, 2003
2. William A .Nash, “Theory and Problems of Strength of Materials”, Schaum’s Outline
Series, Tata McGraw Hill Publishing company Ltd, 2007.
3. Srinath, L.S. Advanced mechanics and solids, Tata-McGraw Hill publishing
company ltd, 2005.
4. Punmia B.C.Theory of Structures (SMTS) Vol 1&II, Laxmi publishing Pvt Ltd,New Delhi
,2004
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