Course11210327845 lectures
Dynamic Behaviour of Materials
Prof. Prasenjit Khanikar · IIT Guwahati
About
Study of materials behavior in extreme environments and development of new materials for such environments has become a vital research area for materials scientists and engineers in the 21 st century. Mechanical properties of materials under dynamic loading are considered as an important area of research and development in defense, automotive and aerospace industries. Under dynamic loading conditions, the inertial effects come to play an important role in the deformation behavior of the material. Many materials exhibit strain rate sensitivity at higher strain rates, i.e., flow stress dependence on strain rates. In addition, the failure mechanisms under high strain rate loading conditions are generally different than those occur in low strain rate. Furthermore, the deformation and failure mechanisms are controlled by the microstructure of the materials. This course will be important to mechanical, materials and civil engineers to understand materials behavior for ballistic applications, explosive forming or welding applications, automotive and aerospace applications.
INTENDED AUDIENCE: Mechanical Engineers, Civil Engineers, Materials Engineers
PREREQUISITES: Solid Mechanics and basic Materials Science course
Lectures
Week 1 : Introduction
- Lec 1: Introduction to Dynamic Behaviour of Materials - I
- Lec 2: Introduction to Dynamic Behaviour of Materials - II
- Lec 3: Introduction to Waves
- Lec 4: Quasi-static vs Dynamic Deformation
Week 2 : Elastic Wave
- Lec 1 : Elastic Wave and its classification
- Lec 2 : Propagation of Elastic Waves in Continuum
- Lec 3 : Wave Reflection, Refraction and Interaction
Week 3 : Elastic and Plastic waves
- Lec 1 : General Solution of Elastic Wave Equation
- Lec 2 : Additional Considerations of Elastic Wave in Cylindrical Bar
- Lec 3 : Introduction to Plastic Waves
Week 4 : Plastic Wave
- Lec 1 : Plastic Waves of Uniaxial Stress
- Lec 2 : Plastic Waves of Combined Stress
- Lec 3 : Taylor's Experiment for Plastic Wave Propagation 1
- Lec 4 : Taylor's Experiment for Plastic Wave Propagation 2
Week 5 : Shock Wave
- Lec 1 : Taylor's Experiment: Wilkins-Guinan Analysis
- Lec 2 : Introduction to Shock Waves- I
- Lec 3 : Introduction to Shock Waves- II
- Lec 4 : Shock Wave: Rankine Hugonoit Treatment
Week 6 : Shock wave
- Lec 1 : Rankine Hugonoit Treatment and Shock Wave under Impact
- Lec 2 : Shock Wave under Impact
- Lec 3 : Equations of States (Shock Waves) : Experimental Methods
- Lec 4 : Equations of States (Shock Waves) : Theoretical Calculations
Week 7 : Shock Wave
- Lec 1 : Complex Problems of Shock Waves and Temperature Rise under Shock Wave
- Lec 2 :Shock Wave Attenuation, Interaction and Reflection- I
- Lec 3 :Shock Wave Attenuation, Interaction and Reflection- II
- Lec 4 : Shock Wave Interaction and Reflection
Week 8: Materials Science and Shock Induced Phase Transformations
- Lec 1: Fundamentals of Materials Science and Engineering
- Lec 2: Shock Wave Induced Phase Transformations I
Week 9: Shock Wave Induced Phase Transformations
- Lec 1: Shock Wave Induced Phase Transformations 2
- Lec 2: Shock Wave Induced Phase Transformations 3
- Lec 3: Shock Wave Induced Phase Transformations 4
Week 10: Experimental Techniques and Plastic Deformation at High Strain Rates
- Lec 1: Experimental Techniques for Dynamic Deformation 1
- Lec 2: Experimental Techniques for Dynamic Deformation 2
- Lec 3: Plastic Deformation at High Strain Rates 1
- Lec 4: Plastic Deformation at High Strain Rates 2
Week 11: Plastic Deformation Under High Strain Rates and Shock Waves
- Lec 1: Plastic Deformation at High Strain Rates 3
- Lec 2: Plastic Deformation at High Strain Rates 4
- Lec 3: Plastic Deformation at High Strain Rates 5
- Lec 4: Plastic Deformation Under Shock Waves 1
- Lec 5: Plastic Deformation Under Shock Waves 2
Week 12: Shear Band and Dynamic Fracture
Syllabus and materials
At NPTEL, as the course publishes them.
Credits and licence
- Institution
- IIT Guwahati
- Department
- Mechanical Engineering
- Teacher
- Prof. Prasenjit Khanikar
- Level
- Graduate
- 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.
- Who can watch
- NPTEL gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed