Dynamic Behaviour of Materials

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About Course

Dynamic Behaviour of Materials.

The study of materials behavior in extreme environments and the 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 an important area of research and development in the 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. Also, the failure mechanisms under high strain rate loading conditions are generally different than those that occur in a 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.

 

Dynamic Behaviour of Materials INTENDED AUDIENCE: Mechanical Engineers, Civil Engineers, Materials Engineers.

 

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What Will You Learn?

  • Week 1: Introduction: dynamic deformation and failure
  • Week 2: Introduction to waves: elastic waves; types of elastic waves; reflection, refraction, and interaction of waves
  • Week 3: Plastic waves and shock waves: Plastic waves of uniaxial stress, uniaxial strain, and combined stress; Taylor’s experiments; shock waves
  • Week 4: Shock wave-induced phase transformation; Explosive-material interaction and detonation
  • Week 5: Experimental techniques for dynamic deformation: intermediate strain rate tests; split Hopkinson pressure bar; expanding ring test; gun systems
  • Week 6: Review of mechanical behavior of materials (especially metals): Elastic and plastic deformation of metals; dislocation mechanics;
  • Week 7: Plastic deformation of metals at high strain rates: Empirical constitutive equations; the relationship between dislocation velocity and applied stress; physically-based constitute equations
  • Week 8: Plastic deformation in shock waves: Strengthening due to shock wave propagation; dislocation generation; point defect generation and deformation twinning
  • Week 9: Strain localization/shear bands: Constitutive models; metallurgical aspects
  • Week 10:Dynamic Fracture: Fundamentals of fracture mechanics; limiting crack speed, crack branching and dynamic fracture toughness; spalling and fragmentation
  • Week 11:Dynamic deformation of materials other than metals: Polymers; ceramics; composites
  • Week 12:Applications: Armor applications; explosive welding and forming

Course Content

Dynamic Behaviour of Materials

  • Lec 45: Dynamic Fracture 2c
    00:00
  • Lec 32: Experimental Techniques for Dynamic Deformation 1
    00:00
  • Lec 31: Shock Wave Induced Phase Transformations 4
    00:00
  • Lec 30: Shock Wave Induced Phase Transformations 3
    00:00
  • Lec 29: Shock Wave Induced Phase Transformations 2
    00:00
  • Lec 28: Shock Wave Induced Phase Transformations I
    00:00
  • Lec 27: Fundamentals of Materials Science and Engineering
    00:00
  • Lec 26: Shock Wave Interaction and Reflection
    00:00
  • Lec 25: Shock Wave Attenuation, Interaction and Reflection- II
    00:00
  • Lec 24:Shock Wave Attenuation, Interaction and Reflection- I
    00:00
  • Lec 33: Experimental Techniques for Dynamic Deformation 2
    00:00
  • Lec 34: Plastic Deformation at High Strain Rates 1
    00:00
  • Lec 35: Plastic Deformation at High Strain Rates 2
    00:00
  • Lec 44: Dynamic Fracture 1
    00:00
  • Lec 43: Shear Band 2
    00:00
  • Lec 42: Shear Band 1
    00:00
  • Lec 41: Plastic Deformation Under Shock Waves 3
    00:00
  • Lec 40: Plastic Deformation Under Shock Waves 2
    00:00
  • Lec 39: Plastic Deformation Under Shock Waves 1
    00:00
  • Lec 38: Plastic Deformation at High Strain Rates 5
    00:00
  • Lec 37: Plastic Deformation at High Strain Rates 4
    00:00
  • Lec 36: Plastic Deformation at High Strain Rates 3
    00:00
  • Lec 23: Complex Problems of Shock Waves and Temperature Rise under Shock Wave
    00:00
  • Lec 22: Equations of States (Shock Waves) : Theoretical Calculations
    00:00
  • Lec 9: Additional Considerations of Elastic Wave in Cylindrical Bar
    00:00
  • Lec 8: General Solution of Elastic Wave Equation
    00:00
  • Lec 7: Wave Reflection, Refraction and Interaction
    00:00
  • Lec 6: Propagation of Elastic Waves in Continuum
    00:00
  • Lec 5: Elastic Wave and its Classification
    40:54
  • Lec 4: Quasi-static vs Dynamic Deformation
    00:00
  • Lec 3: Introduction to Waves
    57:36
  • Lec 2: Introduction to Dynamic Behaviour of Materials – II
    42:04
  • Lec 1: Introduction to Dynamic Behaviour of Materials – I
    33:15
  • Lec 10: Introduction to Plastic Waves
    00:00
  • Lec 11: Plastic Waves of Uniaxial Stress
    00:00
  • Lec 12: Plastic Waves of Combined Stress
    00:00
  • Lec 21: Equations of States (Shock Waves) : Experimental Methods
    00:00
  • Lec 20: Shock Wave under Impact
    00:00
  • Lec 19: Rankine Hugonoit Treatment and Shock Wave under Impact
    00:00
  • Lec 18: Shock Wave: Rankine Hugonoit Treatment
    00:00
  • Lec 17: Introduction to Shock Waves- II
    00:00
  • Lec 16: Introduction to Shock Waves- I
    00:00
  • Lec 15: Taylor’s Experiment: Wilkins-Guinan Analysis
    00:00
  • Lec 14: Taylor’s Experiment for Plastic Wave Propagation 2
    00:00
  • Lec 13: Taylor’s Experiment for Plastic Wave Propagation 1
    00:00
  • Dynamic Behaviour of Materials [Introduction Video]
    06:37

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