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The subject forms an important part of Engineering curricula for developing the concepts required in the design of various structures. The subject deals with the basic concept of mechanics of body and the behaviour of material used in practice and in structures under varying load conditions.
The First part of the subject deals with the applied mechanics science, which describe the condition of body in rest or motion under the action of forces. In its preview come variety of general and specialised engineering disciplines concerned with analysis of structures and machines and the mechanism of their parts.
In the Second part, the principles of strength of materials is introduced in which the student will learn to distinguish between different types of stress and strain and also the qualitative assessment of stress and strains in material element under the action of internal forces.
Objectives
Knowledge Workers will be able to:
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Analyze and understand the physical behaviour of members of engineering structures.
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Acquire knowledge of various elements of structures.
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Utilise the basic principles.
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Develop skill to tackle field problems.
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Solve the problems by the application of basic principles.
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Judge the suitability of materials in design process.
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| CURRICULUM |
| SL |
Topics : Part-'A' |
Periods |
| 1. |
Introduction |
02 |
| 2. |
Vector Methods |
02 |
| 3. |
Introduction to system of Forces and Equilibrium |
06 |
| 4. |
Friction |
04 |
| 5. |
Kinematics and Kinetics of a Particle |
03 |
| 6. |
Kinematics and Kinetics of Rigid Body |
04 |
| 7. |
Impulse and Momentum |
02 |
| 8. |
Work, Energy and Power |
04 |
| |
|
27 |
| SL |
Topics : Part-'B' |
Periods |
| 1. |
Simple Stress and Strains |
05 |
| 2. |
Elastic Constants |
03 |
| 3. |
Center of Gravity (Centroid) |
05 |
| 4. |
Moment of Inertia |
05 |
| 5. |
Shearing Force and Bending Moments |
05 |
| |
|
23 |
| |
Total |
60 |
| PART-'A' |
| Topics |
Content |
Periods |
| 01 |
Introduction |
02 |
| 01.01 |
Idealization of mechanics; Concept of rigid body; External forces (Body forces & surface forces), Law of Mechanics. |
|
| 02 |
Vector Methods |
02 |
| 02.01 |
Equality and equivalence of vectors; Free and Bound vector; Moment of a force about a point and a line; Couple and moment of a couple; couple moment as free vector. Wrench. |
|
| 03 |
Introduction to System of Forces and Equilibrium |
06 |
| 03.01 |
Statically equivalent force system; simplest equivalent of a system of forces; force analysis, free body diagram, equation of equilibrium. |
|
| 04 |
Friction |
04 |
| 04.01 |
Types of Friction (Static, Dynamic, Sliding, Rolling, Fluid) Rope and Belt Friction etc. |
|
| 05 |
Kinematics and Kinetics of a Particle |
03 |
| 05.01 |
Rectilinear and curvilinear translations; normal and tangential component of acceleration; radial and transverse component of acceleration. |
|
| 06 |
Kinematics and Kinetics of a Rigid Body |
04 |
| 06.01 |
Angular Velocity and angular acceleration. Effective forces on a rigid body. D'Alembert's principle. |
|
| 07 |
Impulse and Momentum |
02 |
| 07.01 |
Linear impulse and linear momentum, angular impulse and angular momentum. |
|
| 08 |
Work, Energy and Power |
04 |
| 08.01 |
Work done by forces and couples, potential and kinetic energy, work-energy; conservation of energy; concept of power and efficiency. |
|
| PART-'B' |
| Topics |
Content |
Periods |
| 01 |
Simple Stress and Strain |
05 |
| 01.01 |
Definition of various terms and their units (S.I. Units). |
|
| 01.02 |
Stress and strain due to axial load and transverse load relation between stress and strain. Hook's law. Studies of stress strain curve. Factor of safety & working stress. Concepts of isotropic materials. |
|
| 01.03 |
Stress and strain in varying sectional bar and composite bar. Stress and strain due to temperature variation in homogeneous and composite bars. |
|
| 01.04 |
Shrinking on hoop's stresses. |
|
| 02 |
Elastic Stress and Strain |
03 |
| 02.01 |
Linear strain and lateral strain, poisson's ratio, volumetric strain. |
|
| 02.02 |
Change in volume due to axial, biaxial & triaxial loading. Bulk modulus. |
|
| 02.03 |
Shear stress and strain, modulus of rigidity. |
|
| 02.04 |
Various relations between modulus of elasticity, Modulus of rigidity and bulk modulus. |
|
| 02.05 |
Simple shear, Complementary shear stress, stress on obligue section. |
|
| 03 |
Centre of Gravity (Centroid) |
05 |
| 03.01 |
Definition of Center of Gravity and Centroid. |
|
| 03.02 |
Determination of Center of Gravity of various Symmetrical and Unsymmetrical sections. |
|
| 03.03 |
Determination of Center of Gravity of perforated sections. Center of Gravity of Semi-Circle, Quadrant Circle. |
|
| 04 |
Moment of Inertia |
05 |
| 04.01 |
Definition of Moment of Inertia. Radius of Gyration. Second Moment of Area. |
|
| 04.02 |
Parallel Axis Theorem and Perpendicular Axis Theorem. |
|
| 04.03 |
Derivation of Moment of Inertia of regular area: Rectangular, Triangular, Circular about Centroidal axis. |
|
| 04.04 |
Moment of Inertia of built up Section: Symmetrical and Unsymmetrical about Centroidal axis. Modulus of Sections. |
|
| 05 |
Shearing Force and Bending Moment |
05 |
| 05.01 |
Types of Beams and types of Supports. Types of Loading. |
|
| 05.02 |
Concept and definitions of Shear Force and Bending Moment. Sign Convention. |
|
| 05.03 |
Shear Force and Bending Moment diagrams for Cantilever, Simply Supported Beam, Over-hanging Beam for various types of loading and couples. Point of Contraflexure. |
|
| 05.04 |
Relation between Bending Moment, Shear Force and Rate of Loading. |
|
| Recommended Books |
| SL |
Title |
Author/Publisher |
| 1. |
Strength of Materials |
R.S. Khurmi. |
| 2. |
Mechanics of Structure |
S.B. Junarkar. |
| 3. |
Strength of Materials |
Ramanrutham. |
| 4. |
Theory of Structure |
Vazirini and Ratwani. |
| 5. |
Strength of Materials and Mechanics of Structure |
Punamia. |
| 6. |
Teaching Plans of Strength of Material |
T.T.T.I. Madras. |
| 7. |
 |
 |
| 8. |
Engineering Mechanics |
I. H. Shames. |
| 9. |
Engineering Mechanics |
Beer & Johnson. |
| Scheme of Examination: Final Examination Marks = 80 |
