Proposition of a new qualification impact test for aerospace smart structures
Résumé
Piezoelectric materials are employed in several different aerospace applications thanks to their actuating and sensing abilities. They can be adopted to control vibration, stress distribution, aeroelastic stability, shape changes, and in structural health monitoring systems. Given the level of reliability required in aeronautics, it is of vital importance to ensure their correct functioning during all aircraft life and for critical events such as impacts. This paper proposes a novel test standard method to measure and qualify the damage resistance of smart PZT structures to a drop-weight impact event. Procedures for the quantification of damage through measurements of electromechanical characteristics are introduced and verified by impact tests.
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