Strength Of Material

Strength of Material

Objectives of studying subject Strength of Material is to study different types of stresses, strain and deformation induced in the mechanical components due to external loads.

To study distribution of various stresses in the mechanical elements or bodies of finite dimensions that deform under loads. To study the effects of component dimensions, materials and shapes on stresses and deformations Outcomes of studying subject Strength of Material Learner will be able to.. Demonstrate fundamental knowledge about various types of loading and stresses induced. Draw the SFD and BMD for different types of loads and support conditions. Analyse the stresses induced in basic mechanical components. Estimate the strain energy in mechanical elements. Analyse the deflection in beams. Analyse buckling and bending phenomenon in columns, struts and beams.

Chapter Moment of Inertia consists of the following subtopics Area moment of Inertia, Principal Axes and Principal Moment of Inertia, Parallel Axis theorem, Polar moment of Inertia.  Chapter Stresses and Strains consists of the following subtopics Definition Stress, Strain, Hooke’s law, elastic limit, uni-axial, bi-axial and tri-axial stresses, tensile & compressive stresses, shear stress, Principal stresses and strains, Mohr’s circle. Elastic Constants: Poisson’s ratio, Modulus of elasticity, Modulus of rigidity, Bulk Modulus, yield stress, Ultimate stress. Factor of safety, state of simple shear, relation between elastic constants, volumetric strain, volumetric strain for tri-axial loading, deformation of tapering members, deformation due to self weight, bars of varying sections, composite sections, thermal stress and strain. Chapter Shear Force and Bending Moment in Beams consists of the following subtopics Axial force, shear force and bending moment diagrams for statically determinate beams including beams with internal hinges for different types of loading, relationship between rates of loading, shear force and bending moment. Chapter Stresses in Beams consists of the following subtopics Theory of pure bending, Assumptions, Flexural formula for straight beams, moment of resistance, bending stress distribution, section modulus for different sections, beams for uniform strength, Flitched beams. Direct and Bending Stresses: Core of sections, Chimneys subjected to wind pressure. Shear Stress in Beams: Distribution of shear stress, across plane sections used commonly for structural purposes, shear connectors. Chapter Torsion consists of the following subtopics Torsion of circular shafts- solid and hollow, stresses in shafts when transmitting power, shafts in series and parallel. Strain Energy: Resilience, Proof Resilience, strain energy stored in the member due to gradual, sudden and impact loads, Strain energy due to shear, bending and torsion. Chapter Deflection of Beams consists of the following subtopics Deflection of Cantilever, simply supported and overhang beams using double integration and Macaulay’s Method for different types of loadings Thin Cylindrical and Spherical Shells consists of the following subtopics Cylinders and Spheres due to internal pressure, Cylindrical shell with hemi spherical ends. Chapter Columns and Struts consists of the following subtopics Buckling load, Types of end conditions for column, Euler’s column theory and its limitations, Rankine and Johnson formula.

Suggested References books for the subject Strength of Material by Mumbai University are as follows Strength of Materials by R. Subramanian, Oxford University Press, Third Edition 2016. Strength of Materials by Ryder, Macmillan. Mechanics of Materials by James M. Gere and Barry J. Goodno, Cengage Learning, 6 thEd, 2009. Mechanics of Materials by Gere and Timoshenko, CBS 2nd Edition. Strength of Materials by Basavrajaiah and Mahadevappa, Khanna Publishers,New Delhi 6. Elements of Strength of Materials by Timoshenko and Youngs, Affiliated East -West Press. Mechanics of Materials byBeer, Jhonston, DEwolf and Mazurek, TMHPvt Ltd., New Delhi. Mechanics of Structures by S.B.Junnarkar, Charotar Publication. Mechanics of Materials by S.S.Ratan, Tata McGraw Hill Pvt. Ltd. Introduction to Solid Mechanics by Shames, PHI 11. Strength of Materials by Nag and Chandra, Wiley India. Strength of Materials by S. Ramamrutham, Dhanpat Rai Pvt. Ltd. Strength of Materials by W.Nash, Schaum’s Outline Series, McGraw Hill Publication, Special Indian Edition.

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