1.
Strength
and Elasticity :
Stresses : Axial, normal,
in-plane, tensile, compressive,
shear, flexural,
uniform,
non-uniform, simple shear, complementary shear.
Strain : Linear, shear, transverse, Poisson's
ratio.
Elasticity
: Elastic,
homogeneous, isotropic,
orthotropic
materials; plastic
state, limits of elasticity and
proportionality, yield
limit, ultimate
strength, proof stress, factor of safety, working stress,
load factor.
2.
Mechanical
Properties of Materials :
Metals
: Ductility,
brittleness, toughness,
malleability, behavior of ferrous and non-ferrous metals
in tension
& compression, shear and
bending tests, standard test
pieces, influence of various parameters on test
results, true and nominal stress, modes
of fracture,
characteristics
of stress-strain
curves,
strain hardening,
hardness : different methods of measurement, Izod and
Charpy impact tests.
Fatigue strength, endurance limit, creep
of metals. Co-relation
between different
mechanical properties, effect of temperature,
testing machines and special features, different
types
of extensometers
and compress meters, measurement of strain
by
electrical resistance strain gauges.
Timber : Tests and strength parallel and
across the grains.
3.
Bending moment and shear force :
Bending
moment and shear force diagrams in
statically determinate
beams
including cantilevers
subjected
to concentrated, uniformly distributed and
varying loads and in plane moment loading,
B. M. and S. F. diagrams by analytical and
graphical methods, relation between bending moment, shear
force and rate of loading, points of contraflexure.
4.
Stresses in beams :
Theory of simple
bending, bending stresses and their distribution,
moment of resistance,
modulus of section, built-up and composite beam sections, beams of uniform
strength, distribution of shear stress in different sections.
5.
Torsion
:
Torsion of circular, solid and
hollow section shafts,
shear stress
and strain due to torsion, angle
of twist, torsional moment
of
resistance,
power transmitted by a shaft, keys and
couplings, combined bending and torsion, close coiled helical
springs.
6.
Principal stresses and strains :
Compound
stresses, analysis of principal planes
and principal
stresses,
Mohr's circle
of
stress, principal strains, angle of obliquity of resultant
stress, principal stresses in beams, principal stresses in shafts subjected
to bending and torsion-with and without axial stress.
7. Thin cylinder and spherical shells, longitudinal and circumferential shears volume change.
*
Term Work :
This
will consist
of experiments (minimum 10)
and graphical
and/or analytical
solutions of problems (minimum 25) based on the
syllabus of strength of materials.
* Books :
1. Mechanics of Structure
Vol. I
S. B. Junnarkar & H. J. Shah
2. Mechanics of Matrials
E. P. Popov
3. Strength of Materials
G. H. Ryder
4. Mechanics of Materials
Timoshenko and Gere
5. Mechanics of Materials
Beer and Johnston.
