Strength Of Materials - IITM

By Prof. K. Ramesh | IIT Madras

Learners enrolled: 3388 | Exam registration: 159

ABOUT THE COURSE:
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

INDUSTRY SUPPORT: All Mechanical, Aerospace and Structural Design Industries dealing with structural design would require this

Summary

Course Status :	Completed
Course Type :	Core
Duration :	12 weeks
Category :	Mechanical Engineering Design Engineering Aerospace Engineering Civil Engineering Structural Analysis
Credit Points :	3
Level :	Undergraduate
Start Date :	24 Jul 2023
End Date :	13 Oct 2023
Enrollment Ends :	07 Aug 2023
Exam Registration Ends :	18 Aug 2023
Exam Date :	29 Oct 2023 IST

Note: This exam date is subjected to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week 1: Introduction to the course, Stress vector

Week 2: Stress tensor, Equilibrium conditions, Mohr’s circle

Week 3: Proof of Mohr’s circle, Principal stress and its directions, Octahedral and deviatoric stresses

Week 4: Free surface, Stress and Strain measurement (Photoelasticity and various strain measurement techniques)

Week 5: Strain Tensor, Tension test

Week 6: Stress strain relations, Interrelations between elastic constants, Thermal strain

Week 7: Torsion

Week 8: Bending - Euler Bernoulli hypothesis, Flexure formula, Engineering analysis

Week 9: Bending - Shear stresses, Composite beams, Shear in I beams and shear centre

Week 10: Unsymmetrical bending, Deflection

Week 11: Deflection, Theories of failure

Week 12: Theories of failure, Stability

Books and references

1.K. Ramesh, Video lectures on Engineering Mechanics - pre-requisite. This or equivalent.
2.Mechanical Sciences, G. K. Lal, Vijay Gupta, N. G. R. Iyengar, B. N. Banerjee and K. Ramesh, Narosa Publishing House, 1998. Published under the Institution of Engineers book series. ISBN: 81-7319-213-8
3.Introduction to Mechanics of Solids, Crandall, Dahl and Lardener, Tata McGraw Hill, 2009
4.Ramesh K 2017 P_Scope® - a virtual polariscope Photomechanics Lab. (IIT Madras) https://home.iitm.ac.in/kramesh/p_scope.html
5.K. Ramesh, Developments in Photoelasticity: A Renaissance, IOP Publishing, UK, ISBN: Online 978-0-7503-2472-4 Print 978-0-7503-2470-0

Instructor bio

Prof. K. Ramesh

IIT Madras

K. Ramesh is currently the K Mahesh Chair Professor at the Department of Applied Mechanics, IIT Madras; and formerly a Professor at the Department of Mechanical Engineering, IIT Kanpur. He has made significant contributions to the advancement of Digital Photoelasticity. He received his undergraduate degree in Mechanical Engineering from the Regional Engineering College, Trichy (now NIT, Trichy), Postgraduate degree from the Indian Institute of Science, Bangalore and the Doctoral Degree from the Indian Institute of Technology Madras.

He has made significant contributions to the advancement of Digital Photoelasticity. This has resulted in a Monograph on Digital Photoelasticity Advanced Techniques and Applications (2000), Springer, a chapter on Photoelasticity in the Springer Handbook of Experimental Solid Mechanics (2009), a chapter on Digital Photoelasticity in the book on Digital Optical Measurement Techniques and Applications (2015), Artech House London and a recently published book on Developments in Photoelasticity - A renaissance (2021), IOP Publishing, UK. He has over 190 publications to date of which two have been reproduced in the Milestone Series of SPIE. His research has been funded by organizations such as ARDB, ISRO, DST, EU (FP7) and NSF. He received the Zandman award for the year 2012, the first Indian to receive it since its inception in 1989, instituted by the Society for Experimental Mechanics, USA for his outstanding research contributions in applications utilizing photoelastic coatings.

He has been a Fellow of the Indian National Academy of Engineering since 2006. He received several awards such as Distinguished Alumnus Award of NIT, Trichy (2008), President of India Cash Prize (1984). He has been a member of the Editorial Boards of the International Journals: Strain (since 2001), Journal of Strain Analysis for Engineering Design (2009–10), Optics and Lasers in Engineering, and a steering committee member of Asian Society for Experimental Mechanics since its inception in 2000.
For Details See: https://home.iitm.ac.in/kramesh

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.

The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).

Date and Time of Exams: 29 October 2023 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.

Registration url: Announcements will be made when the registration form is open for registrations.

The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.

Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Madras .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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