Course Details
Subject {L-T-P / C} : ME3161 : Mechanics of Materials { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Dr. Balaji P.S.
Syllabus
Definition of stress, stress tensor - normal and shearing stresses in axially loaded members. Normal and shearing strains - stress-strain relationship - Generalized Hooke's Law - Poisson's ratio - relationship between material properties of isotropic materials. - Stress-Strain diagram for uniaxial loading for ductile and brittle materials - working stress - factor of safety. Composite bars in tension and compression, temperature stresses, statically indeterminate problems. Thin Cylinders and Spherical Shells, Torsion of Circular Shafts and Helical Springs, shear force and bending moment diagrams, pure bending theory, shearing stresses in beams, Deflection of Beams, Theory of Columns, Plane stress and plane strain problems, Energy methods: Strain energy due to axial, torsion, bending and transverse shear. Castigliano's theorem, reciprocity theorem, Theories of Failure.
Course Objectives
- To determine the stress and strain in members subjected to axial, flexural and <br />torsional loads.
- To evaluate the principal stresses, strains and to apply the concept of failure theories for design durability study.
- To analyze and design mechanical components such as thin cylinders, circular shaft and springs.
Course Outcomes
Upon completion of the course student should be able to: <br />1. Design and analyse structural members when subjected to loading such as tension, compression, torsion, bending and combined stresses using the fundamental concepts of stress, strain and elastic behaviour of materials. <br />2. Utilize suitable materials in design considering engineering properties, sustainability, cost and weight. <br />3. Execute engineering work in accordance with ethical and economic constraints in-line with the application requirement.
Essential Reading
- S.P. Timoshenko and D.H.Young, Elements of Strength of Materials, Affiliated East West Press Pvt. Ltd.
- E.P. Popov, Engineering Mechanics of Solids, Prentice Hall India, New Delhi. 1990
Supplementary Reading
- I.H. Shames, Introduction to Solid Mechanics, Prentice Hall of India, New Delhi. 1989
- G.H.Ryder, Strength of Materials, ELBS