publication . Article . 2016

Monitoring Poisson's ratio of glass fiber reinforced composites as damage index using biaxial Fiber Bragg Grating sensors

C. Yilmaz; C. Akalin; E.S. Kocaman; A. Suleman; M. Yildiz;
Open Access
  • Published: 01 Aug 2016
  • Publisher: Elsevier
  • Country: Yemen
Abstract
Abstract Damage accumulation in Glass Fiber Reinforced Polymer (GFRP) composites is monitored based on Poisson’s ratio measurements for three different fiber stacking sequences subjected to both quasi-static and quasi-static cyclic tensile loadings. The sensor systems utilized include a dual-extensometer, a biaxial strain gage and a novel embedded-biaxial Fiber Bragg Grating (FBG) sensor. These sensors are used concurrently to measure biaxial strain whereby the evolution of Poisson’s ratio as a function of the applied axial strain is evaluated. It is observed that each sensor system indicates a non-constant Poisson’s ratio, which is a sign of damage accumulation...
Subjects
free text keywords: Organic Chemistry, Polymers and Plastics, Poisson distribution, symbols.namesake, symbols, Fibre-reinforced plastic, Poisson's ratio, Ultimate tensile strength, Fiber Bragg grating, Composite material, Strain gauge, Materials science, Glass fiber, Fiber
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