Abstract
Optical fiber sensors with light weight, small dimension and immunity to electromagnetic interference are widely used in structural health monitoring device. In this investigation, a theoretical model of the strain transferred from the host material to the embedded optical fiber is developed to reveal the differential strains between the optical fiber sensor and host material. The theoretical predictions are validated with the numerical analysis using the finite element method. The percentage of strain in the host material actually transferred to the optical fiber is dependent on the bonding characteristics such as adhesive layer, protective coating and host material. Parametric study shows that the larger of the host material the more strain is transferred to the optical fiber.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference7 articles.
1. E. Udd: Overview of fiber optic applications to smart structures (Plenum Press, New York 1988).
2. F. Ansari: Application of fiber optic sensors in engineering mechanics (ASCE SP 1993).
3. Y.L. Lo: Optical Engineering, Vol. 38 (1998), p.2282.
4. K. Chau, B. Moslehi, G. Song, V. Sethi: SPIE Proc. Vol. 5391 (2004), p.753.
5. K.S. Kim, Y. Ismail, G.S. Spring: J. Composite Materials, Vol. 27 (1993), p.1663.