The course covers the basic aspects of Engineering
Fracture Mechanics. Spectacular failures that triggered the birth of
fracture mechanics, Modes of loading, Classification as LEFM and
EPFM, Crack growth and fracture mechanisms, Energy release rate,
Resistance, Griffith Theory of fracture, Extension of Griffith
Theory by Irwin and Orowan, R-Curve, Pop-in phenomena, Crack
branching. Necessary and sufficient conditions for fracture, Stress
and Displacement fields in the very near and near-tip fields,
Westergaard, Williams and Generalised Westergaard solutions,
Influence of the T-stress and higher order terms, Role of
photoelasticity on the development of stress field equations in
fracture mechanics, Equivalence between SIF and G, Various methods
for evaluating Stress Intensity Factors, Modeling plastic zone at
the crack-tip, Irwin and Dugdale models, Fracture toughness testing,
Feddersonâ€TMs residual strength diagram, Paris law, J-integral, HRR
field, Mixed-mode fracture, Crack arrest methodologies.
Modules
Topics
1
EFM Course outline and
Spectacular Failures
2
Introduction to LEFM and EPFM,
Fatigue Crack Growth Model
3
Crack Growth and Fracture
Mechanisms, Griffith TMs Theory of Fracture
4
Energy Release Rate
5
Review of Theory of Elasticity
6
Westergaard Solution for Stress
and Displacements for Mode I, Relationship between K and G
7
Introduction to multi parameter
stress field for Mode I, Mode II and Mixed Modes
8
SIF for Various Geometries
9
Modeling Plastic Deformation,
Irwinâ€TMs model, Dugdale Model
10
Fracture Toughness Testing, Paris
Law and Sigmoidal curve
T.L. Anderson, Fracture Mechanics - Fundamentals and Applications, 3rd Edition, Taylor and Francis Group, 2005.
Articles from the journals:
Engineering Fracture Mechanics
International Journal of Fracture
Experimental Mechanics
Journal of Mechanics and Physics of Solids
Journal of Applied Mechanics
Strain
Journal of Strain Analysis for Engineering Analysis and
Design, Engineering Failure Analysis etc.
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