Strength of Materials

The lessons have been designed to explain the behaviour of linear elastic bodies and the implementation of of these fundementals in strength calculations.

Objectives

The objectives of this course is to introduce to the students the fundumentals of the science of Stress Analysis so that they may be able to calculate load bearing members under the most common loading situations and also to determine the deflections caused by these loads.

Prerequisites

Syllabus

Indroductory concepts, stress,strain. Unidimensional problems, tension and compression, Hooke's Law. Young's modulus, Modulus of Rigidity, Poisson's ratio, ultimate tensile strength, factor of safety . Temperature induced stresses. Impact loads. Stress concentrations. Shear stress. Stresses in three dimensions, compound stress. Theory of bending, bending moments and shearing forces. Stresses in bending, compound beams and moment of resistance of beams. Torsion. Deformations in bending. Strut theory. Stresses in cylinders under pressure, Thin and thick cylinders. Mohr's stress and strain circle. The problem of fatique in metals and strength problems in cyclic loading.