scholarly journals Health monitoring of large composite structures by using fiber optic distributed strain sensors. Experiences at America's Cup 2000.

2000 ◽  
Vol 12 (3) ◽  
pp. 298-302
Author(s):  
Hideaki MURAYAMA ◽  
Kazuro KAGEYAMA ◽  
Isao KIMPARA ◽  
Akiyoshi SHIMADA ◽  
Hiroshi NARUSE
Keyword(s):  
Health Monitoring ◽  
Composite Structures ◽  
Fiber Optic ◽  
Strain Sensors ◽  
America’S Cup ◽  
Distributed Strain

scholarly journals Numerical Analysis of the Effect of Microscale Components Interaction on Measurements of Fiber Optic Strain Sensors Used in Composite Structures

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Mikhail Tashkinov ◽  
Igor Shardakov
Keyword(s):  
Composite Material ◽  
Numerical Analysis ◽  
Optical Fiber ◽  
Composite Structures ◽  
Fiber Optic ◽  
Strain Tensor ◽  
Strain Sensors ◽  
Numerical Estimation ◽  
Structural Components ◽  
Fiber Optic Strain Sensors

The paper investigates the influence of structural components of a composite material on the strain values measured by using an embedded optical fiber with Bragg gratings. The effect of composite plies and intermediate epoxy layers on the transfer of deformations from the measured object to the optical fiber was studied taking into account various methods of the fiber attachment and surrounding media configurations. A numerical estimation of the effect of the longitudinal and transverse components of the strain tensor on the wavelength of the reflected spectrum is performed.

Design of Piezoelectric Sensors for Structural and Health Monitoring Based on the Principle of Virtual Work

2013 ◽  
Vol 745 ◽  
pp. 73-87 ◽  
Author(s):  
Michael Krommer ◽  
Hans Irschik
Keyword(s):  
Health Monitoring ◽  
Virtual Work ◽  
Piezoelectric Sensor ◽  
Spatial Filter ◽  
Strain Sensors ◽  
Structural Level ◽  
Principle Of Virtual Work ◽  
Spatial Filters ◽  
Different Types ◽  
Distributed Strain

This paper is concerned with the discussion of a general methodology to design continuously distributed strain sensors; the latter are also known as spatial filters. The methodology is based on the application of the principle of virtual work. Hence, solutions for the design problem can be computed from static auxiliary problems; yet, they are valid for actual dynamic problems as well. Moreover, the use of the principle of virtual work enables a simple and straightforward translation of the results to a structural level. Different types of spatial filters, such as modal filters, displacement filters and compatibility filters are presented and their use for structural and health monitoring is discussed. Some illustrative examples for each type of spatial filter are presented, in which piezoelectric sensor networks are used to put the filters into practice; in each example experimental results validate the presented design methodology.

Structural Health Monitoring of a UAV Fleet Using Fiber Optic Distributed Strain Sensing

2015 ◽  
Author(s):  
OSHER SHAPIRA ◽  
URI BEN-SIMON ◽  
ARIK BERGMAN ◽  
SHAY SHOHAM ◽  
BENNY GLAM ◽  
...  
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Fiber Optic ◽  
Strain Sensing ◽  
Structural Health ◽  
Distributed Strain
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