Modelling of inspection reliability

A number of computer models are available for prediction of nondestructive testing (NDT) inspection reliability in terms of probability of detection (POD) and false calls (PFI). These cover an increasing range of inspection techniques and run in real time on a standard PC. The models are being increasingly used and validated. Methods are evolving to correct model predictions for human error. The model approach provides complimentary data to experimental assessments and allows existing experimental data to be more widely used. The models can provide specific data not available from experimental measurements such as parametric studies, assessment of historical data and optimisation at the design stage. The models are already being used in economic assessments, integrity assessments, to support safety cases and validation of inspection procedures and plans. It is anticipated that he use of POD models will increase significantly in future years. There is a need for development of customised models for specific applications and industries and increased validation as use increases. Support from industry to meet these objectives is sought