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Course11210631938 lectures

Strength Of Materials

Prof. K. Ramesh and Prof. Tarkes Dora Pallicity · IIT Madras IIT Guwahati

Start with lecture 1 At NPTEL

About

The course will cover the basics of mechanics of deformable solids undergoing small deformations. The syllabus includes: Concepts of state of stress, strain and stress-strain and stress-strain-temperature relations. Exposure to experimental evaluation of stresses by photoelasticity and strain gauges. Stresses developed in torsion, bending, and shear-stresses in bending for slender members. Exposure to unsymmetrical bending and shear center. Bending deflection by various methods with particular emphasis to method of superposition. Stability of columns. Concepts of stress concentration, stress intensification and theories of failures. Extensive use of animations with supportive experimental results will be the unique feature of the course

Intended audience: Undergraduate students and practicing engineers/scientists from mechanical sciences Industries and Research laboratories

Prerequisites: Engineering Mechanics - https://nptel.ac.in/courses/112106286

Lectures

Week 1

  1. Introduction to Strength of Materials - 1 YouTube
  2. Introduction to Strength of Materials - 2 YouTube
  3. Stress Vector YouTube

Week 2

  1. Stress Tensor YouTube
  2. Equilibrium Conditions YouTube
  3. Mohr's Circle YouTube

Week 3

  1. Proof of Mohr's Circle YouTube
  2. Principal Stresses YouTube
  3. Octahedral and Deviatoric Stresses and Principal Directions YouTube

Week 4

  1. Free Surfaces YouTube
  2. Photo Elasticity YouTube
  3. Strain YouTube

Week 5

  1. State of Strain YouTube
  2. Strain Measurement YouTube
  3. Tension Test YouTube

Week 6

  1. Stress Strain Relations YouTube
  2. Inter-relations between Elastic Constants YouTube
  3. Thermal Strain YouTube

Week 7

  1. Torsion 1 - Thought and Physical Experiments YouTube
  2. Torsion 2 - Mathematical Development YouTube
  3. Torsion 3 - Problem solving, Hollow shaft YouTube

Week 8

  1. Bending 1 - Euler-Bernoulli Hypothesis YouTube
  2. Bending 2 - Flexure Formula YouTube
  3. Bending 3 - Engineering Analysis of Beams YouTube

Week 9

  1. Bending 4 - Shear Stress in Beams YouTube
  2. Bending 5 - Composite Beams YouTube
  3. Bending 6 - Shear in I-Beams and Shear Centre YouTube

Week 10

  1. Bending 7 - Unsymmetrical Bending and Combined Loading YouTube
  2. Review 1 YouTube
  3. Deflection 1 - Moment-Curvature and Load-Deflection YouTube
  4. Deflection 2 - Moment-Area Method YouTube

Week 11

  1. Deflection 3 - Method of Superposition and Energy Method YouTube
  2. Deflection 4 - Fictitious Load Method YouTube
  3. Theories of Failure - 1 - Overview YouTube

Week 12

  1. Theories of Failure - 2 - Yield surfaces, Mohr's Theory and Failure in Combined Loading YouTube
  2. Stability 1- Governing Equations, Fixed-free and Pinned-pinned YouTube
  3. Stability 2 - Fixed-pinned, Fixed-fixed YouTube
  4. Review 2 YouTube

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Madras IIT Guwahati
Department
Mechanical Engineering
Taught by
Prof. K. Ramesh, Prof. Tarkes Dora Pallicity
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge. Coordinated by IIT Guwahati.
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