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Worth of Modelling for Assessing the Intrinsic Capability of NDT

Martin Wall, Steve Burch
AEA Technology plc, National NDT Centre,E1, Culham Science Centre,Abingdon,
Oxfordshire,OX14 3ED, United Kingdom
Email: martin.wall@aeat.co.uk ,steve.burch@aeat.co.uk
Contact

Abstract

Inspection performance and capability

Worth of modelling reliability and intrinsic capability (IC)

Conventional NDT Models and simulators

Approaches to modelling of POD and Intrinsic capability

Physical POD Models

Signal/Noise models

Image classification models

Simulation Models ('Visual' POD, 'Spot the Ball')

3D Visualisation Models linked to CAD

Expert Judgement

Statistical models

Human Reliability Correction h(HF)

Validation

Applications of POD Models

Conclusions

Acknowledgements

References

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  2. Proceedings European-American Workshop on Determination of reliability and validation methods for NDE, Berlin, June 18-20 1997. (Papers by Wall, Thompson, Rummel, Berens and Forli).
  3. Silk M G, Stoneham A M and Temple JAG: 'The Reliability of Non-Destructive Examination', Adam Hilger Press, Bristol, UK, 1987, ISBN 0-85724-533-8
  4. Schmerr L W: Modelling and Simulation of NDE Inspections, Review of progress in Quantitative Nondestructive Evaluation QNDE18, Vol 18, pp 679-694, Ed. Thompson and Chimenti, Kluwer Academic/Plenum Publishers, 1999.
  5. M Wall, F A Wedgwood, S Burch: Modelling of NDT Reliability (POD) and applying corrections for human factors, ECNDT7 Paper 439, Proceedings 7th European Conference on NDT (ECNDT), Copenhagen, 26-29 May 1998
  6. Wall M: Modelling of Inspection Reliability, Engineering Science and Education Journal, Vol. 6 No. 2 pp63-72 April 1997.
  7. Rummel Ward D: Transfer of POD performance Capabilities from simple shapes to complex shapes; Review of progress in Quantitative Nondestructive Evaluation QNDE18, Vol 18, pp 2305-2310, Ed. Thompson and Chimenti, Kluwer Academic/Plenum Publishers, 1999.
  8. Silk M S: Estimates of the probability of detection of flaws in TOFD data with varying levels of noise; BINDT Journal INSIGHT vol. 38 no. 1 January 1996.
  9. Daniels Will and McGraph Bernard, MUSE a computer model for optimisation of ultrasonic inspection in complex geometry components, AEA Technology, 1999.
  10. Lhémery Alain: Multiple-Technique NDT simulations of Realistic Configurations at the French Atomic Energy Commission, Review of progress in Quantitative Nondestructive Evaluation QNDE18, Vol 18, pp 671-678, Ed. Thompson and Chimenti, Kluwer Academic/Plenum Publishers, 1999.
  11. ESA/ESTEC Project 12228/96 The Probability of Detection of NDT Techniques as applied to Aerospace components, Development of computer models for POD, AEA Technology plc.
  12. R A Murgatroyd et al: Human Reliability in Inspection: Results of Action 7 of PISC III Programme, 1994.

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