Theory of Composite Shells

By Prof. Poonam Kumari   |   IIT Guwahati
Learners enrolled: 40
Like beams and plates, shells are the functional element of structural engineering.At research level, a large group of researches work in the field of bending, free vibration, buckling and post buckling analysis of shells made of composites, sandwiches and advance material. In this course,basic concept of doubly curved surfaces will be developed and governing equation will be developed.This will help the participants to develop the shell equations as per their requirement.Bending,free vibration and buckling of shell will be explained.Atutorial using ABAQUS will also be conducted.

Research scholar and Faculties
PREREQUISITES : Advanced Solid Mechanics
Course Status : Upcoming
Course Type : Elective
Duration : 8 weeks
Start Date : 23 Jan 2023
End Date : 17 Mar 2023
Exam Date : 26 Mar 2023 IST
Enrollment Ends : 30 Jan 2023
Category :
  • Mechanical Engineering
  • Advanced Mechanics
Credit Points : 2
Level : Postgraduate

Page Visits

Course layout

Week 1:Curvilinear coordinate system and various fundamental of surfaces
Week 2: Classification of shell theories
Week 3: Development of governing equations
Week 4:Use of shell constitutive relations and special cases
Week 5:Navier solutions for Cylinderical shells under bending load
Week 6:Navier solution to axisymmetric,unsymmetrical cases
Week 7: Free vibration and buckling of cylindrical shells and basic development for Levy solutions
Week 8:Introduction to three dimensional solutions of cylindrical shell

Books and references

1.J.N.Reddy,"Theory and Analysis of Elastic Plates and Shells",CRC Press,2006.
2.Harry Kraus,"Thin elastic Shells",John Wiley & Sons,1967
3.S.Timoshenko and S.K.Woinowsky,"Theory of Plates and Shells",McGrow-Hill International,2007
4.E.Ventsel and T.Krauthammer,"Thin Plates and Shells",Marcel Dekker,Inc.,2001.
5.A.Ugural,"Stresses in Plates and Shells",McGrow Hill,1999.
6.P.L.Gould,"Analysis of Shells and Plates",Springer-Verlag,1988
7.C.L.Dym.,"Introduction to the Theory of Shells",Hempshire Publishing Corp.,1990

Instructor bio

Prof. Poonam Kumari

IIT Guwahati
Prof.Poonam Kumari is currently an Associate Professor in the Department of Mechanical Engineering of the Indian Institute of Technology Guwahati.She received her Ph.D. degree from Indian Institute of Technology Delhi in 2012.She did her Post-Doctoral Fellowship at Simon Fraser University.She works in the area of Continuum Mechanics and Smart Material and structures.She has developed three-dimensional as well as two-dimensional solution for composite and piezolaminated plates.She has 29 International Journal publications and 29 International Conference publications.She is teaching course of Theory of plates and Shells since 2014 at IIT Guwahati.She has also conducted an online course on theory of rectangular plate under MOOCs.Her course was selected for faculty development programme course by AICTE.She received Young Engineer Award in 2017 from Indian National Academy of Engineers very recently, she also received approval for SERB women excellence award,2019.

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: 
26 March 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.


Average assignment score = 25% of average of best 6 assignments out of the total 8 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 Guwahati. 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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