Abstract
Damage detection systems based on various technologies—such as Comparative Vacuum Monitoring, Electro-Mechanical Impedance, Acoustic Emission, and Lamb Waves—have been investigated by the major aircraft manufacturers over the last decade. The main focus of the investigations is to determine the possible application scenarios for these technologies, anticipating potential benefits for the commercial aircraft scheduled maintenance programs. Structural Health Monitoring (SHM) damage detection solutions have the potential to reduce aircraft operators direct maintenance costs and fleet downtime. In order to provide a common understanding, scope, and key elements for SHM it was produced by an SAE technical committee the ARP6461 document, encompassing guidelines for the implementation of Structural Health Monitoring for civil aviation. The document includes guidelines for development, validation, verification, and certification of damage detection systems. Although not being implemented as current inspection tools, the SHM damage detection systems have demonstrated progress for finding damages in different types of structures. Embraer is one of these major commercial aircraft manufacturers which have extensively tested different technologies, from coupons to aircraft test beds.
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