Simultaneous measurement of curvature and strain based on fiber Bragg grating in two-dimensional waveguide array

Optics Letters
|December 11, 2013
PubMed

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The mechanics of deformation in curved members, such as beams or arches, under bending moments, involve complex responses. When such a member, symmetric about the y-axis and shaped like a segment of a circle centered at point C, is subjected to equal and opposite forces, its curvature and surface lengths change significantly. This alteration results in the shift of the curvature's center from C to C', indicating a tighter curve.
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