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25 April 2023 Inclusion of human factors in POD assessments: a theoretical approach
Vamsi Krishna Rentala, Daniel Kanzler
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Proceedings Volume 12491, 8th International Workshop on Reliability of NDT/NDE; 1249104 (2023) https://doi.org/10.1117/12.2657705
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States
Abstract
Even though, POD assessments of NDT techniques have been well demonstrated in various industrial sectors such as aviation, nuclear, oil and gas, railways, etc., they lack the inclusion of several influences as explained from the modular model. Influences due to intrinsic capabilities or due to application/environmental parameters can somehow be demonstrated under controlled laboratory and field inspection procedures. However, nowadays the biggest challenge lies in the inclusion of human factors and the organization context into the POD assessments and this can be mainly due to not being able to quantify the human factors. Hence, in the current work on accounting human factors influence on POD curves, the main idea is based on identifying majority of the human related tasks while carrying out the inspection procedures in terms of various statistical metrics. This topic on quantification of human factors is a part of the ongoing WIPANO project "normPOD", for the standardization of reliability assessment in Germany. This method of representation in terms of statistical metrics would enable holistic inclusion of human related influences in the form of the scatter parameters required for POD assessments. Efforts towards inclusion of these quantified human factor parameters into the POD assessments were shown by the adoption of Monte-Carlo approaches.
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Vamsi Krishna Rentala and Daniel Kanzler "Inclusion of human factors in POD assessments: a theoretical approach", Proc. SPIE 12491, 8th International Workshop on Reliability of NDT/NDE, 1249104 (25 April 2023); https://doi.org/10.1117/12.2657705
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KEYWORDS
Nondestructive evaluation
Reliability
Inspection
Monte Carlo methods
Statistical analysis
Statistical modeling
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