# Strength of Materials (PAI) (2130608)

Syllabus

Sr. Topics Teaching Hours Module Weightage
1
Statically Determinate Structures:

Analysis of support reactions, Internal forces in trusses, beams; Consideration of concentrated loads, moments/couples, Uniformly Distributed Loads (UDL), Uniformly Varying Loads (UVL); Shear Force and Bending Moment Diagrams for Beams, Point of Contraflexures, Point and magnitude of Maximum bending moment and maximum shear force,

8
20 %
2
Friction:

Theory of friction, Types of friction, Static and kinetic friction, Cone of friction, Angle of repose, Coefficient of friction, Laws of friction, Application of theory of friction: Friction on inclined plane, ladder friction, wedge friction, belt and rope friction.

6
15 %
3
Stresses in Beams:

Flexural stresses – Theory of simple bending, Assumptions, derivation of equation of bending, neutral axis, determination of bending stresses, section modulus of rectangular & circular (solid & hollow), I,T,Angle, channel sections
Shear stresses – Derivation of formula, shear stress distribution across various beam sections like rectangular, circular, triangular, I, T, angle sections.

8
20 %
4
Torsion:

Derivation of equation of torsion, Assumptions, application of theory of torsion equation to solid & hollow circular shaft, torsional rigidity, Power Transmitted by shaft.

6
15 %
5
Principal Stresses:

Two dimensional system, stress at a point on a plane, principal stresses and principal planes, Mohr’s circle of stress

6
15 %
6
Physical & Mechanical properties of materials:

Elastic, homogeneous, isotropic materials; Stress –Strain relationships for ductile and brittle materials, limits of elasticity and proportionality, yield limit, ultimate strength, strain hardening, proof stress, factor of safety, working stress, load factor, Properties related to axial, bending, and torsional & shear loading, Toughness, hardness, Ductility, Brittleness

6
15 %