Publications

Transfer function model-assisted probability of detection for lap joint multi site damage detection

Bode, Michel D.; Newcomer, Justin T.; Fitchett, Stephanie

The use of the Transfer Function approach to Model-Assisted Probability of Detection (MAPOD) is explored by inspecting airplane lap joint specimen sets with multiple site fatigue damage. Four specimen sets representing a matrix with structure type and defect types as the two axes were inspected using ultrasonic linear array. Probability of Detection (POD) curves were generated in each quadrant for 4 inspectors. POD curves in the fourth quadrant, which represents actual in-service crack detection in real airplane structures were predicted from other quadrant curves. Predicted POD curves were compared to observed curves. © 2012 American Institute of Physics.