This course explains mechanical properties of solid and liquid materials.
Understand the meaning of deformation, and mechanical properties like stress~strain graphs, brittle breakage like glass and cast iron, surface tension, viscosity of fluids, Bernoulli’s principle.
Following topics are covered:
1) Introduction to Elasticity
2) Types of Stress and corresponding strains – Longitudinal (tensile & compressive), Shear, Volumetric
4) Hooke’s Law and Young’s Modulus of Elasticity
5) Longitudinal : Young’s Modulus – Tensile Stress versus Strain graph- Ductile and Brittle materials
6) Bulk Modulus – Volume Stress versus Strain
7) Work Done and Potential Energy (Elastic Potential energy equation derivation)
8) Practical Experiment to find Young’s Modulus
9) Poisson’s ratio
10) Relationship between Poisson’s ratio and Young’s Modulus, Shear Modulus, Bulk Modulus
11) Surface Tension in a liquid : adhesion, inter-molecular cohesion, potential energy
- Height of liquid column – equation derivation
12) Surface Tension: case of steel needle floating on water: Equation derivation
13) Parallax Errors in readings due to surface tension
14) Contact Angle: concept and examples > a) water in glass tube, b) mercury in glass tube
15) Cohesion versus Adhesion and Potential Energy for a liquid in a tube
16) Adhesion forces explanation of Contact Angle for cases :
- water in glass tube
- mercury in glass tube
- mercury in Copper tube
- water on paraffin Wax flat plate
- water in a Silver vessel
- water on a Lotus Leaf.
17) Capillary tube
18) Capillary action in nature: example of a flower
19) Equation derivation: Height of Capillary in a capillary tube
21) Viscosity : an introduction
21) Velocity gradient concept
22) Co-efficient of viscosity
23) Dimensions of co-efficient of viscosity
24) Bernoulli’s Principle: liquid flow
25) Stoke’s law and equation
26) Terminal Velocity for object moving through a fluid
27) Stokes method: Practical Experiment to measure co-efficient of viscosity
28) Reynolds number
29) Solved Problems- H.C.Verma explained in eay way
Course Features
- Lectures 39
- Quiz 0
- Duration Lifetime access
- Skill level All levels
- Language English
- Students 194
- Certificate No
- Assessments Yes
- 1 Section
- 39 Lessons
- Lifetime
- Mechanical Properties of matter39
- 1.1Elasticity – an introduction
- 1.2Types of Stress and corresponding Strain
- 1.3Hooke’s Law and Modulus of Elasticity
- 1.4Longitudinal stress versus strain graph – Ductile material (Mild steel)
- 1.5Stress versus Strain graph – BRITTLE materials (Cast Iron)
- 1.6Practical setup – A Universal Testing Machine -for Tensile strength and Compressive strength
- 1.7Energy Absorption – Modulus of Resilience and Modulus of Toughness
- 1.8Calculate Work done and Elastic Potential Energy
- 1.9Poisson’s Ratio – different from Young’s Modulus
- 1.10Relation between Poisson’s Ratio and Young’s Modulus, Shear Modulus and Bulk Modulus
- 1.11Bulk Modulus and Compressibility – Volumetric Stress versus Strain
- 1.12Surface tension
- 1.13Surface Tension- Concept ,equation, Steel Needle floating on water
- 1.14Parallax Error in readings- due to Surface Tension
- 1.15Contact Angle – concept and examples
- 1.16Cohesion versus Adhesion, and Potential Energy
- 1.17Contact angle-Water in glass tube
- 1.18Contact angle- Mercury in glass tube
- 1.19Contact angle- Mercury in copper tube
- 1.20Contact angle- water on paraffin wax plate
- 1.21Contact angle- water in a Silver vessel
- 1.22Contact angle- water with Lotus leaf
- 1.23Capillary tube
- 1.24Capillary action in nature
- 1.25Equation – Height of liquid in capillary tube
- 1.26Viscosity – an introduction
- 1.27velocity gradient
- 1.28co-efficient of viscosity
- 1.29Dimensions of co-efficient of viscosity
- 1.30Bernoulli’s Principle – liquid flow
- 1.31Stoke’s Law – for Viscous Drag
- 1.32Terminal velocity
- 1.33Practical Experiment – measurement of Co-efficient of Viscosity – Stokes method
- 1.34Reynolds number – predicts Laminar and Turbulent flow
- 1.35Solved problem-1
- 1.36Solved problem-2
- 1.37Solved problem-3
- 1.38Solved problem-4
- 1.39Solved problem-5 (Bulk Modulus of Water)
