Loading…

Evaluating Strain Limits of Embedded FBG Sensors in Pultruded Hybrid Composite Rods

This paper demonstrates that relatively inexpensive acrylate coated FBGs can survive short exposure times to high temperatures in a pultrusion process and monitor relatively low magnitude bending and axial tension strains in a composite material. However, under higher sustained axial loads, the obse...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power delivery 2022-12, Vol.37 (6), p.5025-5032
Main Authors: Waters, Daniel H., Kumosa, Maciej, Hoffman, Joseph
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper demonstrates that relatively inexpensive acrylate coated FBGs can survive short exposure times to high temperatures in a pultrusion process and monitor relatively low magnitude bending and axial tension strains in a composite material. However, under higher sustained axial loads, the observed interfacial failure of the optical fiber and the host material resulted in a significant reduction of the indicated strains during constant elongation. These findings are analyzed by experimental measurements supported by finite element simulations. The optimal placement of embedded optical fibers in the rods is discussed based on the limitations of the rods and the mechanical strength of the commercially available optical fibers.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2022.3166070