Study The Creep of Tubular Shaped Fiber Reinforced Composites

Abstract

In present work tubular shaped fiber reinforced composites were manufactured by using two types of resins ( Epoxy and unsaturated polyester) and separately reinforced with glass, carbon and kevlar-49 fibers (filament and woven roving), hybrid reinforcement composites of these fibers were also prepared. The fibers were wet wound on a mandrel using a purposely designed winding machine, developed by modifying an ordinary lathe, in winding angle of 55 for filament. A creep test was made of either the full tube or specimens taken from it. Creep was found to increase upon reinforcement in accordance to the rule of mixture and mainly decided by the type of single or hybridized fibers. The creep behavior, showed that the observed strain tends to appear much faster at higher temperature as compared with that exhibited at room temperate. The creep rate also found to be depending on fiber type, matrix type, and the fiber /matrix bonding. The creep energy calculated from experimental observations was found to exhibit highest value for hybridized reinforcement.

Keywords

• Creep
• tubular shaped
• composites