Course # 602 –

Aircraft Structures and Repair Analysis II – Intermediate

 

When a student completes this course she/he should be able to:

  • be familiar with buckling / crippling damaged structural repair
  • check the repair for inter-rivet buckling
  • determine proper corrosion and other blend-outs
  • come up with beam repairs to restore the bending capability of damaged structure
  • restore the compression capacity of structure before damage
  • understand coldworking of holes, shot-peening and other life extension techniques

Prerequisite:

  • preferably taken FATIGUE CONCEPTS 601 or Boeing/Airbus Beginners Structural Repair training
  • some experience in OEM-approved aircraft structural repairs
  • a Bachelor’s Degree in Engineering or equivalent experience

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
  • 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
  • Structural Design
  • ASI (Aviation Safety Inspectors)
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Syllabus

  1. Review of Fundamentals of Aircraft Structures Analysis
    • Sign Convention
    • Aluminum, Steel, Magnesium and Titanium Properties
    • Which Alloys are Used Where. And Why.
    • Fatigue Fundamentals
    • Basic Repair Guidelines
  2. Beam
    • Design Philosophies
    • Centroid Shift
    • Moments of Inertia
    • Steps to Draw a Mohr’s Circle
    • Bending Stress Distribution
    • Off-Axis Moment
    • Elastic Flexural Formula
    • Curved Beam
    • Composite Beams
  3. Buckling
    • Fundamentals – Euler Equation
    • End Fixity Coefficients
    • Euler-Engesser Column Buckling Equation
    • Inter-rivet Buckling
    • Local Peaking of Stresses Under Compression Loading
  4. Crippling
    • Gerard Method
    • Needham Method Advantages
    • Utilization of Bulbs, Lips, Additional Bends
    • Johnson-Euler Buckling
    • Repair Philosophies
  5. Beam Repair
    • Examples
  6. Fatigue Crack Propagation Life Extension Techniques
    • Cold-working of Holes
    • Shot-Peening Considerations
    • Laser Shock Peening
This syllabus is for guidance only; the syllabus may change retaining the current flavor.