STRUCTURAL BEHAVIOR OF HYBRID MATERIALS BASED ON CARBON AND GLASS FABRICS

М.Е. Zhurkovsky, V.V. Samoilenko, V.V. Firsov, А.N. Blaznov, Е.V. Atyasova
DOI: 10.25699/SSSB.2018.22.15453 Download PDF
Abstract: This work is relevant in that it investigates hybrid polymer composite materials based on carbon- and glass-fiber fabrics and epoxy resin. This study aimed to explore the elastic and structural behavior of hybrid materials depending on the arrangement and content of carbon- and glass-reinforced plastic layers. Seven types of specimens were fabricated with different layer arrangement and carbon fabric content. The strength, elastic modulus and ultimate strain of the plates were measured by buckling test. The plate made of the carbon fiber-reinforced plastic was found to have the highest strength of 768 MPa and the highest elastic modulus of 51.2 GPa, while the glass-reinforced plastic plate had lower strength and elastic modulus of 303 MPa and 11.7 GPa, respectively. The elastic and structural behavior of the hybrid composites depend on the carbon filler content and its layer arrangement during shaping and testing. At a glass and carbon fiber ratio of 50:50, the best properties were obtained by alternating the layers of the glass fabric and carbon fabric (585 MPa strength, 30.8 GPa elasticity), while the arrangement of 5 glass fabric layers and 5 carbon fabric layers in succession impaired the properties (476 MPa strength, 23.9 GPa elasticity); moreover, the best behavior was achieved for a plate wherein the glass fabric layers were arranged in the tension region under bending and the carbon fabric layers in the compression region.
Index terms: plates, glass fabric, carbon fabric, longitudinal bending, hybrid materials, strength, elastic modulus, rigidity.

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