Abstract
Since fiber reinforced polymer composites are becoming increasingly popular, nondestructive damage detection in these materials has become an important issue. Real time structural health monitoring using Fiber Optic Polarimetric Sensors (FOPS) in an interesting field of research in recent years. This paper presents the performance of FOPS using three different optical sensing fibers: low birefringence (low-bi), high birefringence (high-bi) and an ordinary single mode polarization maintaining fiber. The static and dynamic response of these fibers are experimentally evaluated under different conditions. The experiments were conducted on composite structures by embedding the optical fibers into specimen. Composite materials are extensively used in aerospace applications. The sensitivity of all fibers under different conditions is discussed for static and dynamic loading.
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