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DEMO1 : Adaptive metacomposites

DEMO1 manager: Manuel COLLET, FEMTO-ST

Co-manager : Yann LE GORREC, FEMTO-ST


Objective:

This adaptive composite material is locally programmable at the cell’s level by using a dedicated micro-architecture including sensors & actuators.

The macroscopic behavior can also be controlled (i) for allowing Structural Health Monitoring (SHM) and failure prognostic, or (ii) by generation of distributed constraints to modify the structural shape and/or vibroacoustic behavior (transparency / absorption).

 

Main deliverable:

After 8 years, it is expected to demonstrate an integrated prototype of a smart composite plate with its computing interface and designs tools. This smart composite plate should be able to demonstrate SHM features, as well as shape or vibroacoustic control features

 adaptive metacomposites

Socio-economic impacts:
  • Structure lightening: integration of sensors / actuators in mechanical structures will help to decrease the weight of mechanical structures without bearing the consequences in terms of robustness, induced stability problem, or unknown fatigue and damage mechanisms;
  • Morphing of mechanical structures: controlable deformation of mechanical structures allows self-adaptive aerodynamic control and therefore reduction of energy consumption;
  • Vibro-acoustic control: cancellation of noise (inside buildings or emitted by industrial plants or by airplanes);
  • Structural health monitoring  design of dedicated sensors (SAW sensors), their  integration inside mechanical structures, and data extraction by expert systems will secure “sensitive” structures, and reduce maintenance costs.

 

Potential applications:

Energy, Transportations, Health: morphing of mechanical structures, vibro-acoustic control, structural health monitoring 

 metacomposites labex action aircraft morphing

 

Keywords: Adaptive Structures, Structural Health Monitoring, distributed actuation, vibroacoustic control, active shape control.