Abstract
The most important property required for any structural composite material is high strength to weight ratio and corrosion resistance. To improve the interfacial addition between carbon fiber and epoxy resin, the epoxy matrix has been modified with hybrid resin. The unidirectional carbon/epoxy composites were prepared with different weight proportions of two resins (hybrid resin) with parts by weight(PBW). In this paper unidirectional carbon fiber T700 used as reinforcement and hybrid resin used as matrix for preparing the Uni-Directional(UD) laminate and Naval Ordnance laboratories(NOL) ring specimens. These specimens are prepared with filament winding technique, specimens were tested as per ASTM standards and test was conducted on Instron 4505 with 100KN capacity. From the test results it has been observed that the tensile strength measured by NOL ring specimens are more trustable than the results obtained with unidirectional(UD) test specimens. NOL ring test data is useful for making composite pressure vessels for aerospace applications.
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