Failure Mechanics of a Composite Laminate Embedded with a Fiber Optic Sensor
作者： Kunigal Shivakumar , Anil Bhargava
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摘要: A fiber optic sensor (FOS) embedded perpendicular to the reinforcing fibers causes an ‘eye’-shaped defect. The length of eye is about 16 times radius (RFOS) and height 2RFOS. contains optics in center surrounded by elongated resin pocket. Embedding FOS geometric distortion over a equal 6-8 RFOS. This defect severe stress concentration at root pocket, interface (in composite) between optical composite, 90 load direction composite. calculated finite element modeling representative micrograph. FE results agreed reasonably with analytical experimental data literature for similar problem. axial 1.44 transverse 0.165 pocket 0.171. Under tensile loading, initial failure ...
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