Characterization of guided wave propagation in aircraft structures

Structural health monitoring (SHM) is a major area of interest for the aerospace community,

especially considering aging aircraft where the growing maintenance costs, estimated to

$10,4 billion worldwide annually, can reduce their economic life. The long-term goal of the

industry is to deploy SHM systems which will 1) meet the in-service inspection requirements

with sensors permanently installed on the structure and 2) provide operational and economic

benefits compared to the baseline inspection methods. Strategies using guided wave

propagation have been proposed for embedded monitoring of airframe structures. However,

wave propagation and interaction with defects in complex structures is addressed in the

literature only for specific and limited number of components and types of defects. For

example, interaction with cracks in metallic joints and debonding in composite joints has been

investigated to some extent. The objective of this knowledge-gap based research is to

provide the industry with an extended knowledge base for a variety of basic aircraft

structures, standards, from which the guided…….

Faculty Supervisor:

Ahmed Maslouhi;Larry Lessard;Patrice Masson;Martin Viens

Student:

Partner:

Bombardier Aeronautic Inc (Saint-Laurent, QC);L-3 MAS

Discipline:

Engineering

Sector:

Manufacturing; Transportation and warehousing

University:

École de technologie supérieure; McGill University; Université de Sherbrooke

Program:

Accelerate

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