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ROC and Cost Curves for SHM Performance Characterization in a Multilevel Damage Classification Framework: Application to Impact Damage in Aircraft Composites Structures

A. APICELLA, G. COTTONE, L. DE MARCHI, U. HECKENBERGER, A. MARZANI

Abstract


In this paper, the optimization of maintenance schemes for aircraft structures is treated by a Bayesian updating approach. A built-in structural health monitoring system for multilevel damage detection based on ultrasonic guided waves is considered. Statistical evaluation of the SHM performances are dealt by means of multi-class ROC analysis, probability of detection and false alarm maps. Two methods, based on the minimization of the service life cost statistics are implemented. An application on a square panel of side 1.2m subjected to random impacts is considered.

doi: 10.12783/SHM2015/18


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