NPTEL : Engineering Fracture Mechanics (Mechanical Engineering)

Co-ordinators : Prof. K. Ramesh


Lecture 1 - EFM Course Outline

Lecture 2 - Spectacular Failures

Lecture 3 - Lessons from Spectacular Failures

Lecture 4 - LEFM and EPFM

Lecture 5 - Fracture Mechanics is Holistic

Lecture 6 - Fatigue Crack Growth Model

Lecture 7 - Crack Growth and Fracture Mechanisms

Lecture 8 - Elastic Strain Energy

Lecture 9 - Fracture Strength by Griffith

Lecture 10 - Energy Release Rate

Lecture 11 - Utility of Energy Release Rate

Lecture 12 - Pop-in Phenomenon

Lecture 13 - Displacement and Stress Formulations

Lecture 14 - Forms of Stress Functions

Lecture 15 - Airy’s Stress Function for Mode-I

Lecture 16 - Westergaard Solution of Stress Field for Mode-I

Lecture 17 - Displacement Field for Mode-I

Lecture 18 - Relation between KI and GI

Lecture 19 - Stress Field in Mode-II

Lecture 20 - Generalised Westergaard Approach

Lecture 21 - William’s Eigen Function Approach

Lecture 22 - Multi-parameter Stress Field Equations

Lecture 23 - Validation of Multi-parameter Field Equations

Lecture 24 - Discussion Session - I

Lecture 25 - Evaluation of SIF for Various Geometries

Lecture 26 - SIF for Embedded Cracks

Lecture 27 - SIF for Surface Cracks

Lecture 28 - Modeling of Plastic Deformation

Lecture 29 - Irwin’s Model

Lecture 30 - Dugdale Model

Lecture 31 - Fracture Toughness Testing

Lecture 32 - Plane Strain Fracture Toughness Testing

Lecture 33 - Plane Stress Fracture Toughness Testing

Lecture 34 - Paris Law and Sigmoidal Curve

Lecture 35 - Crack Closure

Lecture 36 - Crack Growth Models

Lecture 37 - J-Integral

Lecture 38 - HRR Field and CTOD

Lecture 39 - FAD and Mixed Mode Fracture

Lecture 40 - Crack Arrest and Repair Methodologies

Lecture 41 - Discussion Session - II