Fracture Mechanics
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Follow on Instagram for UpdatesFracture Mechanics Syllabus — Unit-wise Content
The official GTU curriculum for Fracture Mechanics (subject code ME02078021) as prescribed for M(D · Semester 2 divides the course into 5 units, covering 54 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (ME02078021)Unit 1 Introduction to Fracture Mechanics
- Stress-Strain Curve
- Elements of dislocation theory
- Historical perspective
- Stress Concentration effect of flaws
- Fracture Mechanics approach to design
- Effect of material properties on fracture
- Brittle and Ductile fracture
- ductile brittle transition
- modes of fracture failure
- Fatigue and stress corrosion cack growth
- Damage tolerance
Unit 2 Linear Elastic Fracture Mechanics
- An atomic view of fracture
- Griffith Energy Balance
- Energy release rate
- instability and the R Curves
- tearing modulus
- Stress and Displacement field in isotropic elastic materials
- Airy stress function
- Westergard approach for different modes of fracture
- Stress analysis of crack
- Stress intensity factor (SIF)
- relation between K and global behaviour
- Effect of finite size
Unit 3 Elastic-Plastic Fracture Mechanics
- Crack tip deformation and plastic zone size
- plane stress vs plane strain
- effective crack length
- Irwin plastic zone correction
- Dugdale approach
- effect of plate thickness
- J Contour Integral: Relevance and scope
- J as a path- independent line integral
- J as a stress intensity parameter
- Stress- Strain relations
- J-Controlled fracture
- Laboratory measurement of J, Crack Tip Opening Displacement (CTOD)
- Relationship between CTOD
- K and G, Equivalence between CTOD and J, Determination CTOD from strip yield model
- HRR Singularity
Unit 4 Fatigue Fracture
- Introduction to fatigue
- factors affecting fatigue performance
- fatigue loading
- constant and variable amplitude loading
- some characteristics of fatigue crack
- Paris Law
Unit 5 Experimental and Finite Element Estimates of Fracture
- Mechanics: Experimental determination of J-Integral
- Critical Stress intensity factor and CTOD
- Photo elasticity techniques
- strain gage measurements
- Fatigue crack initiation and propagation testing Preprocessing in Finite Element Method
- Element selection and meshing of crack
- Load application
- preprocessing checks
- processing the model
- post processing
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