NOC:Mechanical Behavior of Materials (Hindi)

Lecture 1 - Elasticity: Introduction Definition and Units

Lecture 2 - Engineering Stress Strain Curve and Measures of Strength

Lecture 3 - Measures of Ductility, UTS and Necking

Lecture 4 - True Stress - True Strain Curve and Necking Criterion

Lecture 5 - Atomistic Basis of Elasticity

Lecture 6 - Stress at a point and Poisson’s Ratio

Lecture 7 - Normal Stresses and Shear Stresses

Lecture 8 - Independence of stress components

Lecture 9 - Plane stress transformation equations in 2D

Lecture 10 - Mohr’s Circle of stress

Lecture 11 - Principal stresses and Principal planes

Lecture 12 - Principal stresses in 3D and stress invariants

Lecture 13 - Stress Tensor: Transformation and Hydrostatic and Deviatoric stress state

Lecture 14 - Concept of Strain - Normal strain and shear strain

Lecture 15 - State of Strain at a Point - Displacement, Rotation and Strain Tensors

Lecture 16 - Elastic Constants and Elastic Stress - Strain Relations

Lecture 17 - Anisotropy of Elastic Behavior

Lecture 18 - Elastic Constants and Symmetry

Lecture 19 - Yielding Criteria

Lecture 20 - Atomistic Mechanisms of Yielding and Slip

Lecture 21 - Resolved Shear Stress and Schmid’s law

Lecture 22 - Maximum Shear Strength of Crystalline Materials

Lecture 23 - Dislocations: Edge and Screw

Lecture 24 - Mixed Dislocation and Burgers Circuit

Lecture 25 - Peierls-Nabarro Stress

Lecture 26 - Geometrical Properties of Dislocations

Lecture 27 - Dislocation Motions: Glide, Cross-Slip and Climb

Lecture 28 - Plastic Strain and Dislocation Motion

Lecture 29 - Forces on dislocations: Peach Kohler Equation

Lecture 30 - Stress Field around a Screw Dislocations

Lecture 31 - Stress Field around an Edge Dislocation

Lecture 32 - Strain Energy of a Dislocation

Lecture 33 - Dislocation Dissociation and Dislocation Line Tension

Lecture 34 - Strain Hardening and Dislocations Interactions

Lecture 35 - Dislocation Interaction: Stable Configurations and Strain Hardening

Lecture 36 - Dislocation: Nucleation and Frank Read Source

Lecture 37 - Partial Dislocations and Stacking Faults in FCC

Lecture 38 - Dislocation Locks: Lomer-Cottrell Lock

Lecture 39 - Ordered Structures: Superlattice Dislocations and APBs

Lecture 40 - Dislocation and Stacking Sequence in BCC

Lecture 41 - Intersection of Dislocations: Jogs and Kinks

Lecture 42 - Strain Hardening stages in an FCC Single Crystal

Lecture 43 - Independent Slip Systems: Von Mises Criterion for Plasticity

Lecture 44 - Solid Soloutions Strengthening (SSS)

Lecture 45 - Solid Soloutions Strengthening: Interaction of Solutes and Defects

Lecture 46 - Cottrell Atmosphere and Yield Point Phenomenon

Lecture 47 - Precipitation Hardening and Dispersion Strengthening

Lecture 48 - Grain Size Strengthening

Lecture 49 - Dislocation model for grain boundaries

Lecture 50 - Twinning in Crystalline Materials

Lecture 51 - Fracture and Theoretical Cohesive Strength of Materials

Lecture 52 - Fracture and Theoretical Cohesive Strength of Materials

Lecture 53 - Fracture modes and Stress Concentration

Lecture 54 - Fracture Mechanics - LEFM vs EPFM and J-Integral

Lecture 55 - Creep Deformation of Materials

Lecture 56 - Deformation Mechanics Map and Superplasticity

Lecture 57 - Fatigue of Materials: Introduction and SN Curve

Lecture 58 - Fatigue Stages and Paris Law

Lecture 59 - Cyclic Stress-Strain Curve and Strain Life Curve

Lecture 60 - Effect of Mean Stress and Stress Amplitude

Lecture 61 - Hardness of Materials

Lecture 62 - Impact Testing of Materials

Lecture 63 - Anelastic Behaviour and Composite Materials