the application of advanced non-destructive testing...eddy current array 3. thermography c....
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The Application of Advanced
Non-Destructive Testing
Mr Garrett Booth and WOFF Greg Wilson
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Overview
A. Australian Defence Force Non-Destructive Testing
B. NDT Accounting
C. Examples of advanced Non-Destructive Testing
Techniques:
1. Phased Array Ultrasonic Testing
2. Eddy Current Array
3. Thermography
C. Advantages and Disadvantages
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In addition to authority roles, the Defence Aviation Safety
Authority also provides Specialist Engineering Services,
including:
• DASR 21J approved Engineering product
• Structural Integrity Subject Matter Expert Advice, and
• Training.
Non-Destructive Testing is an essential enabler to Defence
Aviation Safety Authority’s structural integrity capability, for the
Australian Defence Force.
A. Australian Defence Force –
Non-Destructive Testing
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As an industry group, we all have our own perceived costs for
NDT.
Basic Accounting Perception
Aircraft availability – Unnecessary downtime
Non-productive – no defects found
Overhead costs are prohibitive
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B. NDT Accounting
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The Accounting Reality
Aircraft availability
Limited warranty claims (Manufacturing)
Maintenance cost control – early detection
Public and Government confidence
WHS/OHS – No loss of life or limb
The perceived and real costs provide constant pressure to do
things better, faster and hopefully, more cost effectively.
This creates the opportunity for advanced NDT technologies onto
existing and new platforms to improve asset availability, platform
life extension and safety.
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B. NDT Accounting
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1. Phased Array Ultrasonic Testing
2. Eddy Current Array
3. Thermography
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C. Examples of Advanced
Non-Destructive Testing Techniques
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C.1. Phased Array Ultrasonic Testing:
Conventional Ultrasonics Explanation
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C.1. Phased Array Ultrasonic Testing
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FA-18 Hornet Inner Wing Step Lap Joint
C.1. Phased Array Ultrasonic Testing
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C.1. Phased Array Ultrasonic Testing
FA-18 Hornet Inner Wing Step Lap Joint Phased Array
Ultrasonic Testing Image
Technical Drawings
Image
Side View
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AP-3C Orion wing
skin risers with H Clip
brackets in-situ.
C.1. Phased Array Ultrasonic Testing
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H Clip attachment holes,
cracking between holes.
H Clip attachment holes,
no cracking.
C.1. Phased Array Ultrasonic Testing:
Data Analysis
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• F/A-18A/B Hornet:
– Platform could safely achieve planned withdrawal date
• AP-3C Orion:
– Eliminated tank entry risks (Work Health & Safety)
– Increased aircraft availability
– Improved data detail and retention.
– Ensured safety of platform
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C.1. Phased Array Ultrasonic Testing:
Results
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C.2. Eddy Current Array
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Conventional
Eddy Current
Testing
Eddy Current
Array Testing
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KC-30A Multi Role Tanker Transport
Refuelling Hose Failure
C.2. Eddy Current Array
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C.2. Eddy Current Array
Refuelling Hose showing
Corroded braid and
Eddy Array Probe
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C.2. Eddy Current Array
Scanned Image of Refuelling Hose
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KC-30A Multi-Role Tanker Transport:
• Reduction of cost of ownership:
- Acceptance check on purchased hoses
- Speed of inspection
• Improved asset availability
C.2. Eddy Current Array:
Results
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Two main Types:
• Passive – Technician looks at the heat from an object, at an
instant.
• Active – Technician looks at the heat dispersion from an
object, over time.
C.3. Thermography (1/4)
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ComputerMonitor Power
Supply
CameraFlash
Lamp
SampleDefect
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C.3. Thermography:
Active Thermography (2/4)
Computer
Power Supply & Control Electronics
Camera & Flash Unit
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C.3. Thermography:
Active Thermography (3/4)
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Defence Aviation Safety Authority’s application of advanced
Non-Destructive Testing techniques has:
Ensured Airworthiness
Reduced life cycle cost
Improved asset availability &
Improved data fidelity
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D. Advantages
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The application of advanced Non-Destructive Testing techniques
has complicated the determination of Airworthiness:
Manufacture
Un-documented repairs identified
Erroneous processes identified
Application of new technologies versus old technology at time of
manufacture
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D. Disadvantages
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Excess Data
Data captured requires more in depth review and material/structural
knowledge
WHAT IS SEEN CANNOT BE UNSEEN !
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D. Disadvantages
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NDT Provides an Opportunity to:
Improve asset availability
Decrease costs
Ensure Safety.
.
DASA (NDT&CT)
Can assist you, whether an ADF organisation or Defence contractor
to better manage your platform with the use and management of
Non-Destructive Testing.
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Summary
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NDT&CT WOFF NDT:
WOFF G Wilson
P: +61 (0) 7 536 13087
NDT&CT Engineering Manager:
FLTLT C Leete
P: +61 (0) 7 536 11653
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DASA NDT&CT Contacts
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QUESTIONS
UNCLASSIFIED
UNCLASSIFIED
CONTACT:
Mr Garrett Booth
NDT Level 3 Contractor
Defence Aviation Safety Authority
Royal Australian Air Force
Email: [email protected]
Phone: +61 410 501 644