Title :
In-situ evaluation of composite structural performance in presence of high stress/strain gradients using multi-axis fiber grating strain sensors
Author :
Udd, E. ; Black, K. ; Schulz, W. ; Kreger, S. ; Kunzler, M. ; Heider, D.
Author_Institution :
Blue Road Res., Gresham, OR, USA
Abstract :
Multi-axis fiber grating strain sensors have been used to quantitatively measure axial strain and temperature, transverse strain and transverse strain gradients in composite weave structures. This paper overviews the multi-axis fiber optic grating strain sensors and how they can be applied to measuring multidimensional strain fields interior to complex composite parts.
Keywords :
diffraction gratings; fibre optic sensors; strain sensors; composite weave structure; multi-axis fiber grating strain sensor; multidimensional strain field; strain gradient; stress gradient; Birefringence; Capacitive sensors; Fiber gratings; Optical fiber polarization; Optical fiber sensors; Optical fibers; Optical reflection; Strain measurement; Stress; Temperature sensors;
Conference_Titel :
Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th
Conference_Location :
Portland, OR, USA
Print_ISBN :
0-7803-7289-1
DOI :
10.1109/OFS.2002.1000501
