Structural Health Monitoring and Remote Sensing of Transportation Infrastructure Using Embedded Frequency Selective Surfaces

Frequency Selective Surfaces (FSS) have long been used in the RF/microwave community to control Radar Cross-Section. The scattering parameters of the FSS form a signature which is a function of the frequency, element size and spacing, as well as the local electromagnetic environment, but with proper design is largely independent of angle. These attributes can be related to engineering parameters of a transportation structure such as strain, temperature, moisture, and damage such as cracking or delamination. The project will integrate a FSS into a structure (initially on the surface and eventually embedded within layers). This will allow the properties of the structure to be remotely detected. This application of FSS has significant potential for Structural Health Monitoring (SHM). For example the strain on gusset plates as well as other parts of a bridge can be detected from a considerable standoff. Other applications that will be considered are embedding FSS into concrete or composites. Each of these require effective manufacturing approaches which will begin to develop. After implementation, a in service component can be quickly and remotely interrogated for damage, initially using standard microwave network-analyzer/antennas. Additional localized inspection can be performed on an asneeded basis to determine more detailed information regarding local strain field (or other relevant parameters).

• Record URL:
  http://transportation.mst.edu/research/r365/

Language

• English

Project

• Status: Completed
• Funding: $22858.00
• Contract Numbers:

  DTRT06-G-0014

  00043736

• Sponsor Organizations:

  Research and Innovative Technology Administration

  University Transportation Centers Program
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Missouri University of Science and Technology, Rolla

  1870 Miner Circle
  Rolla, MO  United States  65409
• Principal Investigators:

  Kinzel, Edward

• Start Date: 20130801
• Expected Completion Date: 0
• Actual Completion Date: 20140515
• Source Data: RiP Project 35945

Subject/Index Terms

• TRT Terms: Delamination; Embedded systems; Gusset plates; Microwaves; Moisture content; Remote sensing; Strain (Mechanics); Structural health monitoring
• Subject Areas: Data and Information Technology; Design; Transportation (General); I30: Materials;

Filing Info

• Accession Number: 01530503
• Record Type: Research project
• Source Agency: Center for Infrastructure Engineering Studies
• Contract Numbers: DTRT06-G-0014, 00043736
• Files: UTC, RIP
• Created Date: Jul 16 2014 1:00AM