2008

Flexible Structural-Health-Monitoring Sheets

A generic design for a type of flexible structural- health- monitoring sheet with multiple sensor/actuator types and a method of manufacturing such sheets has been developed. A sheet of this type contains an array of sensing and/or actuation elements, associated wires, and any other associated circuit elements incorporated into various flexible layers on a thin, flexible substrate. The sheet can be affixed to a structure so that the array of sensing and/or actuation elements can be used to analyze the structure in accordance with structural-health-monitoring techniques. Alternatively, the sheet can be designed to be incorporated into the body of the structure, especially if the structure is made of a composite material.

Customarily, structural-health monitoring is accomplished by use of sensors and actuators arrayed at various locations on a structure. In contrast, a sheet of the present type can contain an entire sensor/actuator array, making it unnecessary to install each sensor and actuator individually on or in a structure. Sensors of different types such as piezoelectric and fiber-optic can be embedded in the sheet to form a hybrid sensor network. Similarly, the traces for electric communication can be deposited on one or two layers as required, and an entirely separate layer can be employed to shield the sensor elements and traces.

This work was done by Xinlin Qing and Fuo Kuo Chang of Acellent Technologies for Marshall Space Flight Center. For further information, contact Sammy Nabors, MSFC Commercialization Assistance Lead, at This email address is being protected from spambots. You need JavaScript enabled to view it.. Refer to MFS-32510-1.

White Papers

Avionics Reliability – Thermal Design Considerations
Sponsored by Mentor Graphics
Spherical Plain Bearing
Sponsored by AST Bearings
Meeting Industry Standards for Sanitation in The Food Industry
Sponsored by Able Electropolishing
Domestic Versus Offshore PCB Manufacturing
Sponsored by Sunstone Circuits
How to Design Your Part for Direct Digital Manufacturing
Sponsored by Stratasys
Fundamentals of Vector Network Analysis Primer
Sponsored by Rohde and Schwarz A and D

White Papers Sponsored By: