Advanced Damage Tolerance

Prerequisite:

  • Some background in Fracture Mechanics

Who should take this training:

Managers / Engineers / Materials Scientists / Inspectors / DERs in:

  • Aircraft Maintenance
  • Aircraft Production
  • Airline Liaison with OEM
  • Continuing Airworthiness
  • Aircraft Production
  • Helicopter Maintenance
  • Repair & Overhaul of Airframes
  • Accident Investigation
  • Engine Overhaul
  • Materials Selection
  • Materials and Processing (M&P)
  • Automobile
  • Structural Analysis
  • Structural Design
  • Fatigue Crack Growth Analysis
  • Safety Officers
  • Wiring / Ageing Avionics
  • Regulatory Authority, NAAs
  • Corrosion Prevention & Control Programs (CPCP)

From Industries including but not limited to:

  • Airlines
  • Defense Directorates
  • MROs, Repair Stations
  • Army
  • Aircraft and Component Manufacturers
  • Airforce
  • Technical College
  • Navy
  • Civil Aviation Authorities
  • Aircraft Manufacturers
  • Material Suppliers
  • Universities
  • Accident Investigation Agencies, NTSB
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Syllabus:

  1. Review of Mode I – III, Fracture Toughness, Beta Factors, Residual Strength, Crack Growth Laws
  2. Short Cracks, Aircraft Engine Implications, Inapplicability of Paris’ Law, da/dN Data for Small Cracks
  3. Spectrum Generation, Fighter Aircraft Considerations, Transport Category Aircraft, Trainers, Mission Mixes, Effects of Truncation, Clipping, Packaged Spectra, Condensed Spectra
  4. Advanced Fracture Mechanics Analyses Incorporating Thermal Gradients and Residual Stresses, Interference Fit Fasteners, Stop-drill Holes, Cold Expansion of Holes as a Fatigue Preventive, Analysis and Measurement of Various Types of Residual Stresses, Estimates of Relaxation
  5. Probabilistic Fracture Mechanics, Chances of Missing A Crack, Risk Assessments
  6. Fail Safe Structures, Redundant Load Paths, Crack Arrest, Skin-Stiffener Combinations, Analysis Data, Examples
  7. Fractography, Failure Analysis
  8. Advances in Damage Tolerance Techniques, FAA Airplane Damage Tolerance Requirements, USAF Fighter and Transport Category Requirements, Initial Flaw Assumptions, Refined Material Selection Concepts, Determination of Inspection Requirements
  9. Fracture Mechanics and Damage Tolerance Applied to Aging Fleet, Corrosion Fatigue, SCC, Fretting Fatigue, Widespread Fatigue Damage, Muti-site Damage
  10. Composites Fracture Mechanics
  11. Additional Topics Requested by Customer
This syllabus is for guidance only; the syllabus may change retaining the current flavor.