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SACL
Stanford University Structures and Composites Laboratory
Stretchable Network Integration in Composite Structures
Raphaël NARDARI
Structures and Composites Laboratory (SACL) Department of Aeronautics and Astronautics
Stanford University
SACL
Stanford University Structures and Composites Laboratory
“Find a way to integrate in large-scale structures a sensor network with wires thinner than human hair”
Introduction
Nano/micro scale
Stretching to macro
Bio inspired sensor network
Multi-scale fabrication process
UAV
?INTEGRATION
SACL
Stanford University Structures and Composites Laboratory
“Develop an integration process for expandable sensor networks to add intelligence into composite structures”
Problem Statement
A350 composite fuselage
4” silicon wafer with a stretchable network
sensor network stretched
micro to macro scale
SACL
Stanford University Structures and Composites Laboratory
Method of Approach
Structural design - Definition of the geometry - Analytical study and FEM simulation - Material choice and layup optimization
Sensor network design - Definition of desired functionality - Sensor localization definition and
optimization
Smart structure manufacturing - Network integration in the layup - Utilization of insulation patch with some sensors/networks/carbon material
combination
SACL
Stanford University Structures and Composites Laboratory
• Integration of the sensor network in a composite panel to validate the process
• Monitoring of the composite curing process within an oven to check network survivability and response
Conclusion
Future works: Manufacture a smart UAV wing using the embedding technics developed.
This work is supported by : U.S. Air Force Office of Research (AFOSR) MURI program