AE03 APPLIED MECHANICS

 

1.         Basic Concepts and Force Systems                                                               3 hours

 

1.1         Basic Concepts, Units, Scalars and Vectors, Laws of Mechanics.

1.2         Position Vector, Force, Moment and Couple.

1.3         Resultant of force systems, Distributed Forces, Centre of Gravity and Centre of Pressure.

 

I [1, 3, 4]

 

2.         Equilibrium                                                                                                     6 hours

 

2.1         Free body Diagrams, Equilibrium Conditions, Equilibrium Problems.

2.2         Plane Trusses, Method of Joints, Method of Sections.

2.3         Laws of Coulomb Friction, Equilibrium Problems with Friction Thrust Bearing, Belt, Screw etc.

 

I [5, 6A, 7]

 

3.         Properties of Areas and Moments of Inertia                                                 6 hours

 

3.1         Centroids of Lines, Areas, Volumes, Composite Figures, Centre of Mass.

3.2         Second Moments and Products of an Area, Transfer Theorems, Polar Moment of an Area.

3.3         Mass Moments and Product of Inertias of a Body, Translation of Coordinate Axes.

 

I [8, 9]

 

4.         Kinematics and Dynamics of a Particle                                                          6 hours

 

4.1         Velocity and Acceleration in Rectangular, Cylindrical and Polar Coordinates, Simple Relative Motion.

4.2         Application of Newton’s Second Law.

4.3         Energy Method for a Particle, Conservative Forces Field, Conservation of Mechanical Energy, Systems of Particles.

4.4         Impulse and Momentum Relations for a Particle, Linear Momentum for a System of Particles, Impulsive Forces, Impact, Moment of Momentum Equations for a system of Particles.

 

I [11, 12, 13, 14]

 

5.         Plane Motion of a Rigid Body                                                                        6 hours

 

5.1     Translation and Rotation of a Rigid Body, Chasles’ Theorem, Time Derivatives of a Vector Fixed in a Moving References, Velocity and Acceleration of Points of a Rigid Body.

5.2         Moment of Momentum Equations, Rotation of a body of revolution about its Axis, General Plane Motion of a Slablike Body.

5.3         Kinetic Energy of a Rigid Body, Work Energy Relations.

5.4         Free Vibrations, Single Degree of Freedom, Energy Methods.

 

I [15, 16, 17, 19]

 

 

6.         Stresses, Strains and Hooke’s Law                                                               6 hours

 

6.1         Definition of Stress, Stress Tensor, Stresses in Axially Loaded Bars, Analysis for Normal and Shear Stresses.

6.2         Normal Strain, Stress-Strain Diagrams, Hooke’s Law, Poisson’s Ratio, Thermal Strain, Simple Problems on Axially Loaded Bars.

6.3         Constitutive Relation for Shear, Generalized Hooke’s Law, Relations between Elastic Constants, Thin walled Pressure vessels.

 

II [1, 2, 3]

 

7.         Torsion                                                                                                           3 hours

 

7.1         Torsion of Circular Elastic Bars, Shear Stresses and Angle of Twist.

7.2         Design of Circular Members in Torsion, Shaft Couplings.

7.3         Close Coiled Helical Springs, Stresses, Deflection.

 

II [4A, 10]

 

8.         Beams                                                                                                             6 hours

 

8.1         Shear Force and Bending Moment Diagrams, Differential Equations of Equilibrium.

8.2         Elastic Flexural Formula, Its Application, Composite Beams.

8.3         Deflection of Beams, Direct Integration, Moment Area Method.

 

II [5, 6, 10]

 

9.         Fluid Statics                                                                                                    3 hours

 

9.1         Fluids, System and Control Volume, Stress, Strain Rate, Properties of Fluids, Concept of Constitutive Relations.

9.2         Normal Forces of Fluids, Pressure Measurement, Force on Submerged Bodies, Manometers, Buoyancy, Stability, Liquids Subjected to Constant Linear Acceleration and Constant Rotation.

 

III [1, 2]

 

 

10.       Analysis of Flow                                                                                             6 hours

 

10.1      Description of Fluid Flow, Acceleration, Continuity Equation, Stream Functions, Strain rates, Rotation, Circulation, Irrotational Flow, Potential Functions.

10.2      Basic Laws for a System, Reynold’s Transport Theorem, Momentum Equations, Euler’s Equation, Navier-Stokes Equation, Bernoulli’s Equation.

10.3      Flow Measurement.

10.4      Dimensional Analysis and Similitude.

 

III [3, 4, 5, 13]

 

11.       Ideal and Viscous Flow                                                                                   6 hours

 

11.1      Basic Ideal Flows and Superposition.

11.2      Simple Laminar Flows.

11.3      Introduction to Boundary Layer Theory, Drag, Turbulence, Flow around Immersed Bodies, Flow through Pipes.

 

III [6, 7, 8, 9, 10]

 

12.       Fluid Machinery                                                                                             3 hours

 

12.1      Classification, Analysis of Turbo-machines, Performance.

 

III [14]

 

 

Text Books

 

I.       I. H. Shames, “Engineering Mechanics: Statics and Dynamics” 4th Ed., Prentice Hall of India, N. Delhi (1996).

II.    E.P. Popov, “Engineering Mechanics of Solids”, Prentice Hall of India, N. Delhi (1993).

III. K.L. Kumar, “Engineering Fluid Mechanics”, S. Chand and Co., N. Delhi (1997).