Class in NR222
For Pre-Mid-Sem part: Professor Arun Kumar Samantaray
For Post-Mid-Sem part: Dr Jeevanjyoti Chakraborty (JC)
Email: jeevan@mech.iitkgp.ac.in; jeevanjyoti4@gmail.com
Phone: +91-(0)3222-282972 (Office)
For the post-Mid-Semester exam portion, the following textbooks will be followed:
BJS: Beer, Johnston, and DeWolf, Mechanics of Materials, 3rd Edition (in SI units), Tata McGraw-Hill Publishing Company Ltd.
P: Egor P. Popov, Engineering Mechanics of Solids, 2nd Edition, PHI Learning Pvt. Ltd.
A number of copies of both books are available in the Central Library. Students who wish to buy books, will find the latest edition for BJS. There are some differences between the latest edition of BJS and the 3rd edition especially in the section numbers but, overall, the content remains the same. Popov’s book is still in the 2nd edition.
The following is the tentative schedule for the post-Mid-Semester exam part taught by JC.
Specific section numbers to be studied from BJS (Beer, Johnston, and DeWolf) or P (Popov) are mentioned against topics.
| Week | Lectures | Tutorials |
|---|---|---|
|
1 (March 2, 3) |
Normal stress: BJS (1.3 to 1.5) or P (1.6) Shear stress: BJS (1.6) or P (1.8) State of stress at a point: BJS (1.11, 1.12) or P (1.3, 1.4) Ultimate strength, allowable stress, and factor of safety: BJS (1.13) or P (1.10, 1.11) |
Start Tut. 6 Discussed: 3, 7, 9 Class work: 4, 2, 8, 11 Finish 1–12 by next Tutorial |
|
2 (March 10, 12) |
Class to be missed due to March 9 being a holiday will be compensated through extra class on March 12. Venue: V2 (Vikramshila) Time: 11 AM to 1 PM Normal strain: BJS (2.2) or P (2.2) Shear strain: BJS (2.14) or P (5.2) Hooke’s law: BJS (2.3 to 2.5) or P (2.3 to 2.5) Poisson’s ratio: BJS (2.11) or P(2.6) Generalized Hooke’s law: BJS (2.12, 2.15) or P (5.6, 5.7) Analysis of axially loaded members: BJS (2.8) or P (3.2) Simple applications in design: BJS (1.6 to 1.8) or P (1.6, 1.7) |
Tut. 6 contd. Ask doubts from 1–12 of Tut. 6 Class work: TBD Tut. 7 |
|
Following suspension of classes due to COVID-19 precautionary measures, starting from Week 3, lectures are being live-streamed and put on record through YouTube. These lectures delivered by the faculty members of different sections are meant as a common study material for students of all the 10 sections. |
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3 (Mar. 16–20) |
Transformation of stress: BJS (7.2) or P (11.2, 11.3) March 18: Lecture Principal stress and maximum shear stress March 19: Lecture Part 1, Lecture Part 2 Mohr’s circle for plane stress March 20: Lecture (The second half of the above lecture contains discussion of Generalized Hooke’s law) |
Tut. 8 |
|
Following directives from the Institute to the faculty members and staff to work from home, it is no longer possible to deliver the lectures through live streaming. So, starting from the 4th week post Mid-Semester exams, the lectures will be recorded by various faculty members themselves and the links will be shared with the students. These lectures are again meant for the students of all the 10 sections. |
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|
Thin pressure vessels Screen-recorded Lecture |
Tut. 8 | |
|
Torsional stress in cylindrical bars and deformation Lectures by Prof. Manas Laha: Part 1, Part 2, Part 3 |
Tut. 9 | |
|
Flexure formula Lecture by Prof. Arghya Deb: Lecture |
Tut. 11 |
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|
Shear force and bending moment in beam Lectures by Prof. Arghya Deb: Part 1, Part 2 |
Tut. 10 | |
| End-Semester Examinations are cancelled throughout IIT Kharagpur for Spring Semester, 2020 | ||
Class Test 1: February 6, 2020