Accession Number:

ADA370789

Title:

The Use of Fiber Bragg Grating Strain Sensors in Laboratory and Field Load Tests: Comparison to Conventional Resistive Strain Gages

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

• Todd, Michael
• Malsawma, Lex
• Chang, C. C.
• Johnson, Gregg

Report Date:

1999-11-12

Pagination or Media Count:

13.0

Abstract:

Two tests, one involving a bent beam in the laboratory and one involving tensile testing of a ship hull substructure at Naval Surface Warfare CenterCarderock, were performed where strain readings were compared between conventional resistive strain gages RSGs and optical fiber Bragg gratings FBGs. The closely matched results indicate the utility of FBG strain monitoring systems in the structural health field.

Descriptors:

• *STRAIN GAGES
• FIBER OPTICS
• STRUCTURAL PROPERTIES
• LOADS(FORCES)
• GRATINGS(SPECTRA)
• SHIP HULLS
• TENSILE TESTERS
• OPTICAL FILTERS
• BRAGG ANGLE

Subject Categories:

• Fiber Optics and Integrated Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE