An experimental investigation on lateral crushing response of glass/carbon intraply hybrid filament wound composite pipes

The current study aimed to examine an experimental investigation on the energy absorption capability of glass/carbon intraply hybrid filament wound composite pipes subjected to quasi-static lateral compression loading. The composite pipes with different fiber orientation angles were fabricated for both hybrid and non-hybrid to systematically analyze the performance of intraply hybridization process. At least 5 samples of each composite pipe configuration were tested to obtain the load-displacement curves and fracture patterns. The failure modes and fracture mechanisms of crushed samples were discussed to establish the influence of hybridization on crashworthiness parameters through load-displacement response. Separation between the layers (delamination) was occurred as the main damage mechanism in all samples. Hybridization with glass fiber significantly increased the energy absorption capability and load carrying capacity of carbon fiber-reinforced composite pipes. Their crushing values were found as between the values of pipes made of glass fiber and carbon fiber as expected. Furthermore, hybridization provided to opportunity of more stable load-displacement response for crushing process. An increment in fiber orientation angle was also led to increase in energy absorption capability and load carrying capacity. The pipe made of glass with higher fiber orientation had the best specific energy absorption.