Unit 1 Basics of Mechanics

2 lecture hours

• 1.1 Significance and relevance of Mechanics
• Applied mechanics
• flexible body and rigid body. 1.2 Scalar and vector quantity
• Units of measurement (SI units) - Fundamental units and derived units. 1.3 Force – unit
• representation as a vector and by Bow’s notation
• characteristics and effects of a Force. 1.4 Principle of transmissibility of force
• Principle of Superposition 1.5 Force system and its classification

Unit 2 Coplanar Concurrent Forces

• 2.1 Resolution of a force - Orthogonal components of a force 2.2 Equilibrium and Equilibrant
• Free body and Free body diagram
• conditions of equilibrium
• 2.3 Resultant of forces using analytical and graphical methods for the forces acting at a point: 1
• Law of Parallelogram 2
• Law of triangle

Unit 3 Law of Polygon

6 lecture hours

• 2.4 Lami’s Theorem – statement and explanation
• Application for various engineering problems. 3
• Centroid & Centre of Gravity: 04 13 Program Name: Engineering Level: Diploma Branch: Mechanical Engineering / Mechanical Engineering (CAD/CAM) / Mechatronics Engineering Course/Subject Code: DI03000201 Course/Subject Name: Basics of Applied Mechanics 3.1 Concept of Centroid
• Centre of Gravity. 3.2 Axis of reference and Axis of Symmetry. 3.3 Centroid of One-Dimensional geometrical figures using principle of moment. 3.4 Centroid of Two-Dimensional geometrical Plane figures (Square
• Quarter-circle) & Composite figures (not more than three figures) using first moment of area. 3.5 Centre of Gravity of Simple solids (Cube
• Hemisphere) & Composite solids (not more than two solids) using first moment of mass

Unit 4 Direct Stress and Strain

6 lecture hours

• 4.1 Direct stress
• Linear strain
• Elastic limit
• Hook’s law, Modulus of Elasticity or Young’s modulus
• Stress Strain curve for mild steel bar under tension with numerical problems. 4.2 Lateral stress and strain
• Poisson’s ratio
• Volumetric strain
• Bulk modulus
• relation between three moduli and numerical
• Basics Concepts of Shear Stress
• Shear Strain & Modulus of rigidity. 4.3 Concept of composite and compound section
• modular ratio and numerical. 4.4 Concept of Thermal stress and strain
• Thermal stresses for non- yielding and yielding condition with numerical. 4.5 Stresses due to gradual
• sudden and impact load
• corresponding deformation
• Strain energy
• Proof resilience and Modulus of resilience with numerical

Unit 5 Moment of Inertia

4 lecture hours

• 5.1 Concept and Importance of Moment of Inertia. 5.2 Concept of Section modulus
• Radius of gyration
• Polar moment of Inertia. 5.3 Parallel Axis Theorem & Perpendicular Axis Theorem 5.4 Formulas to calculate Moment of Inertia of solid and hollow rectangle
• triangle shapes (without derivations). 5.5 Moment of Inertia of symmetrical and asymmetrical I-section
• Channel section
• Angle section
• Hollow sections and Built-up sections about Centroidal axis and any other reference axis using Parallel axis theorem

Unit 6 Torsion

4 lecture hours

• 6.1 Torque or turning moment or twisting moment
• Angle of twist
• Shear stress in shaft
• strength of shafts
• Polar moment of inertia
• Torsional rigidity
• assumptions in the theory of torsion
• Program Name: Engineering Level: Diploma Branch: Mechanical Engineering / Mechanical Engineering (CAD/CAM) / Mechatronics Engineering Course/Subject Code: DI03000201 Course/Subject Name: Basics of Applied Mechanics 6.2 Equation of Torsion (without derivation) and related numericals. 6.3 Relationship of H.P.
• Torsion and RPM and related numericals

Unit 7 Simple Lifting Machine

4 lecture hours

• 7.1 Describe the components of the given lifting machine. 7.2 Determine mechanical advantage
• velocity ratio
• efficiency and law of the given simple lifting machines. 7.3 Compare reversible & irreversible machines. 7.4 Select the relevant eco-friendly lifting machine required for the given purpose with justification

Unit 8 Mechanical Properties and Tests on Metals

8 lecture hours

• Classification of engineering materials. 7.2
• Physical properties of material: Elasticity
• Hardness etc. 7.3
• Testing of materials for impact value (Izod impact and Charpy impact test) and hardness (Brinell and Rockwell hardness test). 7.4
• Factors affecting selection of materials
• To be Covere d in Laborat ory