Diploma in Damage Tolerance and Fatigue Life of Aerostructures
Online postgraduate diploma of 800 hours in damage tolerance and fatigue life of aerostructures. 8 modules covering structural design philosophies, metal fatigue, load spectra, fracture mechanics, damage tolerance analysis, composite materials, testing and structural maintenance, with an assigned technical tutor.
Take the controls.
Run a real engineering trade-off from this field. Move the sliders, watch the model react in real time and beat the challenge.
What you will be able to do
Compare safe-life, fail-safe and damage-tolerance philosophies.
Estimate the fatigue life of metallic components using S-N and strain-life methods.
Build representative load spectra using rainflow counting.
Apply fracture mechanics to crack growth.
Determine inspection intervals from damage tolerance analysis.
Assess damage in composite structures.
Plan structural testing and maintenance programmes.
Who it's for
- Fatigue and damage tolerance engineers
- Aeronautical structures engineers
- Fracture mechanics engineers
- Structural repair engineers
- Structural test engineers
- Continuing airworthiness engineers
- Engineering or science graduates looking to join aircraft manufacturers
What you'll work with
- CS-25 (EASA), CS 25.571 (damage tolerance and fatigue evaluation of structure)
- FAA AC 25.571-1D (damage tolerance and fatigue evaluation of structure)
- FAA AC 20-107B (composite aircraft structure)
- MIL-STD-1530D (aircraft structural integrity program)
- ASTM E647 (fatigue crack growth rates)
- ASTM E399 (plane-strain fracture toughness)
- ASTM E466 (force-controlled constant amplitude axial fatigue tests)
- MIL-HDBK-1823A (non-destructive evaluation system reliability assessment)
- NASGRO
- AFGROW
- Abaqus
- MSC Nastran
- nCode DesignLife
8 modules
1.1Safe life, fail-safe and damage tolerance1.2Historical evolution after the Comet accidents1.3Lessons from Aloha 243 and widespread fatigue1.4Principal structural elements1.5Damage categories and detectability1.6Interaction between design, manufacturing and maintenance1.7CS 25.571 requirements1.8Limit of validity (LOV)1.9Ageing fleet programmes1.10Case study: analysis of the Aloha 243 accident
2.1S-N curves and fatigue limit2.2Mean stress effect and Goodman diagrams2.3Stress concentration and notch factor2.4Miner's rule and cumulative damage2.5Low-cycle fatigue and the strain-life method2.6Influence of surface finish2.7Fatigue in riveted joints2.8Improvement treatments: shot peening and cold expansion2.9Scatter and safety factors2.10Lab: life estimation with Miner and Goodman
3.1Gust and manoeuvre loads3.2Ground-air-ground cycle3.3TWIST and FALSTAFF spectra3.4Rainflow counting3.5Pressurisation spectra3.6Landing gear loads3.7Truncation and omission of cycles3.8Spectra for helicopters3.9Actual usage monitoring3.10Practical exercise: rainflow counting of a flight record
4.1Stress intensity factor4.2Fracture modes I, II and III4.3Fracture toughness and failure criterion4.4Elastic-plastic fracture mechanics4.5The Paris equation and crack growth4.6NASGRO models and retardation effects4.7Crack closure and overloads4.8Multiple cracks and widespread damage4.9Residual strength4.10Lab: crack growth with the Paris equation
5.1Initial flaw sizes5.2Growth to critical size5.3Residual strength5.4Inspection intervals5.5Discrete source damage5.6Widespread fatigue damage (WFD)5.7Finite element analysis5.8Assessment of repairs5.9Managing uncertainty in the analysis5.10Practical exercise: inspection interval for a cracked stringer
6.1Damage mechanisms in composites6.2Delamination and low-energy impact6.3BVID defects and their detection6.4The no-growth approach in composites6.5Building block testing6.6Environmental factors: moisture and temperature6.7Bonded joints and their certification6.8AC 20-107B and composite requirements6.9Composite repairs6.10Case study: damage categories in a CFRP fuselage panel
7.1Full-scale fatigue test7.2Component and coupon testing7.3Non-destructive inspection: ultrasound and eddy currents7.4Probability of detection (POD)7.5Maintenance planning document7.6Supplementary structural inspection programmes7.7Corrosion and its interaction with fatigue7.8Structural airworthiness directives7.9Fleet life extension7.10Workshop: POD curve from inspection data
8.1Selection of the structural element8.2Definition of the load spectrum8.3Fatigue analysis8.4Crack growth analysis8.5Residual strength and critical size8.6Inspection programme8.7Compliance justification8.8Design improvement proposal8.9Report and presentation8.10Final project: final review with the tutor
How you'll learn
Training is 100% online on the SEIUM campus, with downloadable material, recorded classes and an assigned technical tutor. There are no fixed timetables: you progress at your own pace within the intake, so you can combine the programme with work.
Each module combines theory, guided reading of the original standard and applied exercises. The working software is NASGRO, AFGROW, Abaqus, MSC Nastran and nCode DesignLife, in free, academic or evaluation versions. Testing is studied through real procedures: crack growth analysis under a flight spectrum, defining inspection intervals for a structural element, and assessing impact damage in composite panels. Assessment is continuous by module, plus the final project.
Standards covered: CS-25 (EASA), CS 25.571, FAA AC 25.571-1D, FAA AC 20-107B, MIL-STD-1530D, ASTM E647, ASTM E399, ASTM E466, MIL-HDBK-1823A.
Build it end to end
Your final project follows the real engineering workflow, step by step, reviewed by your tutor.
Where this takes you
Requirements
- Prior technical training or professional experience in the sector. A university degree is not required.
- An internet connection and a computer capable of running the programme software.
- English sufficient to read technical standards.
Ready to start?
Send your application today. Our admissions team replies within 72 hours with your study plan and funding options.
Frequently asked questions
The programme totals 800 hours over 6–8 months. You set your own pace within each intake, and your tutor helps you plan the workload around your job.
You work with NASGRO, AFGROW, Abaqus, MSC Nastran and nCode DesignLife, using free, academic or evaluation versions. Your tutor indicates the free alternative wherever one exists.
A SEIUM Institute diploma, awarded on passing the continuous assessment and the final project. It is SEIUM's own qualification, not an official state degree; its recognition depends on the programme completed and the regulations of each country.
Yes. Modules passed are recognised in a higher programme in the same area (postgraduate diploma or master's). Ask about the recognition policy when you enrol.
Prior technical training or professional experience in the sector (no university degree required), a computer able to run the software and English sufficient to read technical standards.
Start dates are set by SEIUM's faculty for each intake. Our admissions team will confirm the next available date when you apply.
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