Mechanical Behavior of Materials (Hindi)

By Prof. Niraj Mohan Chawake | IIT Kanpur

Learners enrolled: 160 | Exam registration: 5

ABOUT THE COURSE:

In this course, we will learn about the mechanical behavior of materials, linking their atomistic mechanism to their macroscopic behavior. We will deal with the continuum mechanics in view of the elastic and plastic behavior of materials. We will study the creep, fatigue, and fracture of materials.

INTENDED AUDIENCE: UG students or anyone who want to understand the deformation behavior of materials

PREREQUISITES: Should have successfully completed first year of engineering

INDUSTRY SUPPORT: It’s a core UG course, any industry involving the deformation or mechanical behavior of materials will be benefitted

Summary

Course Status :	Upcoming
Course Type :	Core
Language for course content :	English
Duration :	12 weeks
Category :	Metallurgy and Material science & Mining Engineering
Credit Points :	3
Level :	Undergraduate
Start Date :	20 Jan 2025
End Date :	11 Apr 2025
Enrollment Ends :	27 Jan 2025
Exam Registration Ends :	14 Feb 2025
Exam Date :	04 May 2025 IST

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

Page Visits

Course layout

Week 1:

Introduction
Elasticity, Definitions and units Originf of Elasticity
Engineering Stress Strain Curve: Strength and Ductility
True Stress- True Strain curve and Necking criterion

Week 2:

Atomistic basis of elasticity
Stress at a point & Poisson's ratio
Normal stresses & Shear stresses
Stress tensor: Representation of stresses & their independence
Plane stress & stress on oblique plane

Week 3:

Mohr's circle of stress
Principal stresses and strains
Concept of Strain

Week 4:

State of Strain at a Point
Hydrostatic and deviatoric stress state
Elastic stress strain relations & Elastic constants
Compliance and Stiffness tensor, and Elastic strain energy

Week 5:

Yielding criteria for crystalline solids
Atomistic mechanism of yielding and Slip
Resolved & critical resolved shear stress
Introduction to Dislocations: Edge and Screw
Mixed dislocation and Burgers circuit

Week 6:

Glide, cross slip and climb of a dislocation
Peach Koehler Equation
Stress field around dislocations
Dislocation interactions and strain hardening

Week 7:

Dislocation sources
Stacking faults in FCC
Dislocation locks
Dislocation intersections: Jogs and Kinks

Week 8:

Solid solution strengthening
Yield Point phenomenon
Precipitation hardening and dispersion strengthening
Grain boundaries and grain boundary strengthening, Inverse hall-perch relation

Week 9:

Twinning in materials
Fracture: Griffith theory, Fracture mechanics, LEFM and EPFM

Week 10:

Creep deformation and superplasticity

Week 11:

Fatigue of Materials

Week 12:

Different Mechanical characterization techniques
Hardness, Impact testing, Nanoindentation, high strain rate testing

Books and references

Mechanical Metallurgy, George E Dieter, McGraw-Hill.
Mechanical Behavior of Materials, Marc André Meyers, Krishan Kumar Chawla, Cambridge University Press.
Mechanical Behavior of Materials, Thomas H. Courtney, Waveland Press, Inc.
Mechanical Behavior of Materials, William F. Hosford, Cambridge University Press.

Instructor bio

Prof. Niraj Mohan Chawake

IIT Kanpur

Dr. Niraj Mohan Chawake is currently working as an assistant professor in the Department of Materials Science and Engineering at the Indian Institute of Technology Kanpur, India. His research focuses on creep and high-temperature deformation of materials, alloy design, solid-state sintering, and microstructural characterization using diffraction techniques. At IIT Kanpur, he has taught several courses on material deformation behavior, including Mechanical Behavior of Materials, Designing and Selection with Engineering Materials, Dislocations and Plasticity, and Manufacturing Processes.

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:May 4, 2025 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

Please note that assignments encompass all types (including quizzes, programming tasks, and essay submissions) available in the specific week.

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 Kanpur .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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