Investigation of the Impact Behavior of Pultruded Hybrid Composite Profiles

Abstract

The pultrusion process is a widely used technique for production of continuous fiber reinforced plastic profiles with constant cross-section. In some applications, requirements are demanding for profiles able to provide better thermal, acoustic insulation or mechanical properties. In such cases, hybrid pultruded profiles with certain reinforcement configuration are a possible solution. In this study, an experimental study has been carried out to investigate the impact behaviour of polymer matrix hybrid fiber reinforced I profiles. The profiles were produced as reinforced with glass-carbon fibers and polyester resin by pultrusion method. A reference profile (all-GFRP: Glass Fiber Reinforced Plastics) and six series of hybrid profiles which have different types and configuration of fiber reinforcement were tested under Izod notch impact test to assess their structural response up to failure. Izod notch impact tests were conducted according to the ASTM D 256 standard. According to the results of the experimental study; it has been found that the fibre, matrix and mat type added into the hybrid composites during the production of hybrid composite materials significantly affect the impact strength of the produced hybrid composite materials

Keywords: Pultrusion, Hybrid composite, Impact behavior, Glass fiber, Carbon fiber.

DOI: 10.7176/JSTR/5-5-04