COURSE INFORMATION

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Fatigue, Fracture Mechanics, and Damage Tolerance

4 days. Monday - Thursday
March 12-15, 2007
Oklahoma City, OK
(Rose State College, Tom Steed Center in Room 203)

Hello,

We are happy to again bring our useful "Fatigue, Fracture Mechanics and Damage Tolerance
of Aging and Modern Aircraft Structures
"
course to Washington, DC (Pax River), Oklahoma City, Huntsville, and more. See the list to the right for all dates and cities.

3.2 CEUs will be awarded to you, the student, on completing this course!

CEUs are Continuing Education Units awarded in accordance with the guidelines set forth by the International Association for Continuing Education Training. CEU's are recognized by major companies and most Human Resources managers.

I hope you are able to take advantage of this, or, if you are already one of our alumni,  your colleagues will be able to attend this off-site course. This will save you a lot of money in travel costs!

Please feel free to forward this email to your friends and colleagues, as well as to your training department. Thanks!

Subject
Fatigue, Fracture Mechanics, and Damage Tolerance of Aircraft Structures

Metal Fatigue causes an estimated 75% or more of all aircraft major repairs and structural accidents. Our flagship Fatigue Course teaches engineers how to prevent Fatigue failures. FATIGUE CONCEPTS has been a world leader in training aircraft structural engineers worldwide ON-SITE for 15 years. Recent FAA regulations require Damage Tolerance Analysis (DTA) of flight-critical components. Also DTA continues to be a fundamental focus in many military aircraft.

Who Should Attend
Aircraft Structural Engineers, Airline and Helicopter Maintenance Engineers and
Senior Technicians, FAA Officials, Design Engineers, Engine Specialists and Materials Engineers

Topics, Syllabi
Fatigue, Fracture Mechanics, & Damage Tolerance
http://www.fatigueconcepts.com/ffmdt.html


The complete syllabus and times are included at the end of this page if you want to print it.

Cost
$1,799 per person Multi-Student Discounts are available. Enroll early and save!

FATIGUE CONCEPTS has successfully conducted many courses at numerous locations all over the world, including well over a dozen in Dayton. If this training is conducted near you, you save thousands of dollars in airline tickets, hotels, meals and per diem expenses. Also, you can tailor it to suit the needs of your company. We are glad to be a part of the solution to your training problems during these days of restricted training budgets.

"The strong point in the course was that we practiced how to apply fatigue concepts in dealing with practical applications."

Thank you for your support,

Sam Kantimathi
President, Fatigue Concepts
sam@fatcon.com
Phone: +1 916 933 5000
Fax:     +1 916 933 5222

___________________________

How to enroll www.fatigueconcepts.com/regform.html

Student Preparation
What to bring to class....    

Fatcon prides itself in bringing aircraft structures training to all parts of the US and also around the world....

In the near future FatCon plans to give courses in:

Atlanta
Calgary
Dayton
Houston
Huntsville
Los Angeles
Oklahoma City
Orlando
Seattle
Toronto
Washington, DC
and a few other cities in USA and Canada.

Also, worldwide, including

Oslo, Norway
Singapore
Sydney, Australia

Please see our current schedule for updated info.


Tuition Fees

For Everyone:
(except UTC and US Government)
$1,799.00 for registration less than 7days before start of class.
Only $1,
699.00 if you enroll and prepay 7-30 days in advance!
Only $1,599.00 if you enroll and prepay more than a month in advance.
Early Bird!!  $1,499.00 if you enroll and prepay 60 days in advance!

For UTC Employees:
$1,499.00 for registration and payment less than 60 days before the start of class.
Early Bird!! $1,299.00 if you enroll and prepay 60 days in advance!


For US Government Employees:
$1,699.00 for registration less than 7 days before start of class.
Only $1,599.00 if you enroll and prepay 7-30 days in advance!
Only $1,499.00 if you enroll and prepay more than a month in advance.
Early Bird!!  $1,399.00 if you enroll and prepay 60 days in advance!

Multi-Student Discount
Your company may opt to send in 1 student free of tuition cost, for every 3 paid entries received at least 7 days prior to class start date. The individual tuition fees paid by the students or time-frames do not matter, as long as we receive tuition fees with at least 7 days to spare before the class starts.

For example, if your company already paid registration fees for ten students at least seven days before the class, you may send in 10/3 = 3 free students.

CEUs
The number of CEUs (continuing education units) awarded depends on the length of the class.

3 days = 2.4 CEUs
4 days = 3.2 CEUs
5 days = 4.0 CEUs




 

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COURSE OUTLINE
FATIGUE, FRACTURE MECHANICS & DAMAGE TOLERANCE of AGING & MODERN AIRCRAFT STRUCTURES

  • Prologue
  • Cost of Fracture
  • The Danger of Metal Fatigue
    • Early transportation failures from centuries past
      • Bridges
      • Trains
      • Titanic and Liberty ships
      • Wright Flyer, Comet, …
      • F-111 crash
    • What is a Failure? USAF-Navy-FAA-NASA Guidelines
    • Structural Failure Modes
    • Environmentally induced and/or time-dependent failure modes
      • Creep, Fatigue, Corrosion, Wear, Fretting, Hydrogen Embrittlement
    • Synergistic processes
      • Corrosion fatigue, fretting fatigue, SCC, high temperature fatigue
    • Why High Strength materials are weak in fatigue!
    • Crack Initiation and Propagation
    • Design Strategies to combat Metal Fatigue
      • Safe Life
        • Safety Factor fantasies
      • Fail Safe
        • 1. Crack Arrest
        • 2. Multiple Load Path (Structural Redundancy)
        • Design for inspectability
  • Fractography
    • What does a fatigue crack look like?
    • Macro and Micro Aspects
    • Striations and Beach Marks
    • Quantitative and qualitative use
      • Ratchet lines
    • Marker cycles
    • Guides on using Fractography
    • Scanning Electron Microscope
    • Use of fractography to perform failure analysis
  • Stress Concentration Kt, Finishes
    • Stress Concentrations
      • Load Flow Lines (Streamlines): a useful analogy
    • Surface finish
      • Pitfalls in grinding
      • Chrome-plating dangers, zinc and other platings
    • Size effects
      • Leonardo da Vinci
      • Similitude or lack thereof
    • Scatter, Reliability
    • High Temperature Effects
  • Fatigue Life Prediction
    • Cycle parameters
      • Range, amplitude, mean stress, R ratio
    • S-N Curves
      • Endurance Limit is largely a myth: Use Fatigue Strength
      • Fatigue Strength
      • Mean stress effects
      • Constant Life Diagrams, Haigh Diagrams
    • Low cycle fatigue
      • Neuber’s Notch strain analysis
    • Miner’s Myth
      • Extremely limited applicability and lack of defensibility
      • It is not a RULE
    • Fracture Mechanics
      • Griffith Criterion
      • George Irwin, Naval Research Lab: Father of  Fracture Mechanics
      • Stress intensity factor SIF KI
      • Beta factors
      • Residual strength
      • Fracture toughness
        • Effect of thickness, orientation, impact, temperature
        • Dynamic fracture toughness and crashworthiness
      • Crack propagation
      • Thresholds
      • Inspection intervals
      • Classroom problem-solving exercises
      • NDE, detectable crack sizes
        • Visual, eddy current, radiographic, ultrasonic, penetrant, magnetic particle
        • Applicability, comparison
        • POD (Probability of Detection)
        • Reliability of Inspections
        • Case Study: MD-88 uncontained engine failure
      • Initial quality, EIFS equivalent initial flaw size
      • Multiaxial stresses, Mixed mode cracking
    • Short cracks
      • Can be deadly
    • Classroom tutorials in Fracture Mechanics
      • Rigorous, parametric evaluations of various interconnected variables: fracture toughness, initial flaw size, inspection interval, fastener holes, corrosion effects, coldworking, shot-peening, da/dN, material properties C, m, …
    • Damage Tolerance
    • MIL-A-83444 -> MIL-A-87221 -> JSSG2006
      • 1. Fail-safe structure
        • Arrest of a rapidly running crack
        • Safe partial failure of a load path
          • Skin-stringer partnership
          • Titanium crack stoppers
      • 2. Slow crack growth structure
        • Degree of inspectability
      • Initial flaw assumptions
    • Retardation Models
      • Willenborg
      • Wheeler
      • Closure
      • Onera…
    • Continuing damage
    • ASIP, IATP
  • Environmentally Assisted Cracking
    • Corrosion Fatigue
      • Effect of frequency, waveform, hold-time, …
    • Stress Corrosion
      • KIscc
      • SCC ratings for aircraft alloys
      • Case study: SCC of a High Strength Steel Frame in a USNavy Fighter
    • Fretting Fatigue
      • How surface finish, similar materials in contact, slip amplitude, temperature, and environment affect Fretting Fatigue
    • Contact fatigue
      • Gear failures
    • Aging aircraft issues
      • Durability vs Damage Tolerance
      • Multi-Site Damage, Widespread Fatigue Damage
      • The Aloha accident
      • Continued airworthiness
      • Supplemental inspection programs
  • Testing for Substantiation and Data accumulation
    • Cycle Counting methods
      • Rain flow method
    • In-flight loads monitoring
    • Testing
    • Coupons, specimen, component and Full-Scale
      • Standardized Testing
      • Coupon preparation, precracking guidelines
      • E-399 KIc
      • E-647 da/dN
      • Service duplication Testing
      • Environmental chambers
      • Time compression issues in corrosion fatigue testing
    • Load Spectrum Generation
      • Canned Spectra
        • TWIST, MINITWIST, TURBISTAN, HELIX, FELIX, …
      • Sequence effects
      • Truncation, clipping
    • Scatter, Reliability, Risk management
      • Weibull Paper, Example problem
    • Material Properties & Useful Data handouts and Sources
      • S-N curves
      • Crack initiation data 
      • da/dN crack growth data
      • Fracture Toughness Kcs
      • Data sources and handbooks
      • Journals
  • Special Topics (Optional)
    • Cracking in aircraft engine components
      • ENSIP
      • Sioux City DC-10 crash landing
    • Creep Fatigue
    • Thermal Fatigue
      • Concorde
    • Sonic fatigue (Acoustic Fatigue)
    • Fatigue of composites
      • Polymers
    • ARALL, GLARE and other newer materials to fight fatigue
  • Do’s and TABOOs
    • Methods to improve fatigue resistance
    • Clever use of favorable residual stresses
      • Cold-working of holes
      • Shot Peening
      • Residual Stress control measures
    • Bolts, Rivets, Springs, Bearings, Welds, …
    • Failure Analysis: useful learning tool
      • Care and handling of fractures
    • Repair techniques
      • Japan Air Lines 747 crash
    • “stop”-drill?
    • Helpful treatments and processes
      • plating
    • Hi-Tigue and other fatigue rated fasteners
    • Guidelines based on experience
  • Epilogue
  • No highway

 

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Home | Schedule | Register Now
Introduction/Client List | About the Instructor

Courses:
Aircraft Structural Accidents | Fatigue, Fracture Mech, DTA | Corrosion of Aircraft Structures
Composite Structures | Aircraft Composites | A/C Structural Repair Analysis
 Advanced Damage Tolerance Analysis | Aging Aircraft Course

Typical duration of class is four days,
though longer and shorter versions are possible using the same syllabus.
This syllabus is for guidance only; the syllabus may change retaining the current flavor.

Tel: +1 (916) 933-5000  or 1 (888) 726-8463 

1 (888) Sam-Time

Call us Toll-Free from USA and Canada!

Fatigue Concepts
300 Salmon Falls Road, El Dorado Hills, CA 95762  USA
FAX: +1 (916) 933-5222


Email Us!
sam@fatcon.com