The proposal is addressed to the exploitation of fiber optic based sensor for structural health monitoring of aeronautic structures and materials. The activity plan is organized in three tasks, according to the call description. The first activity will be focused on preliminary research on the use of Fiber Optic Bragg Grating (FOBG) sensors for the strain evaluation during a fatigue test on metallic samples in corrosive environment, with the aim to define and characterize a new experimental methodology capable to provide an innovative tool for the prediction of corrosion initiation. The second activity is addressed to the demonstration of a new approach for the realization and test of an apparatus for FOBG sensors interrogation. The task is motivated by the need to identify a robust and reliable instrumentation for flight test campaign. Starting from results of previous experimental campaign carried out together with Alenia, the actions to develop are devoted to the identification of a new class of commercial devices and/or systems for the integration of a novel instrumentation which should be qualified for flight test campaign and, at the same time, must provide higher performances than conventional equipments. The third research activity will be aimed to the development of a distributed strain and temperature sensing system based on standard optical fibers employment. The scattering effects (Raman, Brillouin, Rayleigh…) on the basis of this new technique will be analyzed and prototypal and commercial solution, already certified for laboratory application, will be evaluated. The distributed technique will be tested during ground test campaign, with the aim to reach performances comparable to these typical of FOBG based discrete sensing systems. In conclusion, the proposal is aimed to provide theoretical and experimental support for the exploitation of new technologies for the realization of smart materials and structures.
Field of science
- /social sciences/economics and business/business and management/employment
- /natural sciences/physical sciences/optics/fibre optics
- /engineering and technology/materials engineering/fibers
- /engineering and technology/civil engineering/structural engineering/structural health monitoring
Call for proposal
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