GANPAT UNIVERSITY
B.Tech. Sem. III – Civil Engineering
C – 302 Mechanics of Structures
Teaching Scheme (Hrs)
Examination Scheme (Marks)
Theory
Practical
Sem End
Lect.
Pract.
Total
Internal
Asses.
Marks
Hrs
Total
Internal
Asses.
Sem.
End
Total
Grand Total
4
2
6
30
70
3
100
25
25
50
150
COURSE CONTENT
:
I
PHYSICAL AND MECHANICAL PROPERTIES OF MATERIALS:
Axial, bending and tensional loading, tension, compression, shear, hardness, fatigue,
stiffness, impact etc. relevant laboratory test.
II
STRESSES AND STRAINS
Concept of stress, normal stress, simple stress, simple strain, Hook’s law, working stress, factor
of safety, bar of varying cross section, bar of tapering section, stresses in composite
members.
III
THERMAL STRESSES & STRAINS
Determination of thermal stress and strain, thermal stress in composite members.
IV
ELASTIC CONSTANTS
Introduction, Poisson’s ratio, volumetric strain, relation between elastic constants.
V
SHEAR FORCE AND BENDING MOMENT
Types of beams, actions on the cross section of a beam, sign convention, shear force,
bending moment and axial force diagrams of cantilever, simply supported, fixed and
overhung beams, principle of superposition, variable loading, beam with couples, inclined
load, inclined beams, graphical methods.(Shear force and bending moment of different
load conditions).
VI
BENDING STRESSES IN BEAMS
Introduction, simple bending, theory of simple bending, moment of resistance, modulus of
section, beam of uniform section, composite section, laminated spring
VII
SHEARING STRESSES IN BEAMS
Introduction, shear stress distribution for beam of rectangular, circular, triangle and I
section.
VIII
PRINCIPAL STRESSES AND STRAINS
Principal planes, principle stresses, Analytical method for principal stress, Mohr’s circle of
stress and strain, Theories of failure.
IX
TORSION
Basic assumption, Torsion formula, Design of circular sections, Angle of twist, Shearing stress,
Deformation, Closed coiled helical springs, Helical Springs, power transmitted by shaft, keys
& coupling.
X
THICK AND THIN CYLINDER
Introduction, Thin cylinder and thin spherical vessels under pressure, Applications of thin
cylinder, Hoop and radial Stresses in cylinders, longitudinal stresses in thick cylinder,
Application of thick cylinder, Max circumferential and Radial stresses in thick cylinders
XI
STRAIN ENERGY
Resilience, Strain in spring, Strain energy in tension, compression, Shear bending torsion,
Proof resilience, Impact loads, Sudden loads
XII
COLUMNS AND STRUTS
Short column subjected axial forces and bending moments, engineering problems, long
columns, stability and equilibrium, ranking formula, Indian standard formula, criteria for
design of columns
XII
DIRECT AND BENDING STRESSES:
Members subjected to eccentric loads, middle third rule, and kernel of section, chimney
subjected to wind pressure, retaining walls and dams subjected to hydraulic pressure
PRACTICAL WORK
The practical work shall be based on experimental and analytical work on the topics mentioned
above and will be defended by the candidates.
REFERENCE BOOKS
:
I
Mechanics of structure vol I – By S. B. Junnarkar and H.J. Shah,
Charotar publishing house, Anand
II
Strength of Materials – By S. Ramamrutham , Dhanpat rai & Sons.
III
Strength of Materials – By R. S. Khurmi , S. Chand & Co. New Delhi
IV
Strength of Materials – By M. Chakraborti, S. K. Kataria & Sons
V
Engineering Mechanics Of Solids By E. P. Popove
VI
Mechanics Of Materials By Gere & Timoshenko
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