Title: Carbon Fiber and Hybrid C/Kevlar Composite to Metal Bonding and Analysis using the Weibull Distribution.

Authors: Alessandro Rengan Shawntae Thompson, Myesha Burnett, Baijing Zinnerman

DOI: 10.33599/nasampe/s.24.0161

Abstract: Current economic and environmental policies have urged manufacturers, especially those in transportation industries, to design lightweight structures with the goal of reducing CO2 emissions and fuel consumption. In this study experiments were carried out to determine the Carbon Fiber Reinforced Polymer [CFRP]-metal bond and Hybrid (Carbon /Kevlar) Fiber Reinforced Polymer [HFRP]-metal bond to aluminum. The tensile/shear strength of the CFRP laminates and HFRP laminates bonded to the aluminum are analyzed using the two-parameter Weibull distribution. The shear strength of double lap joints of CFRP and HFRP composites bonded to serrated aluminum were measured and analyzed. However, while the CFRP-metal bonded specimens showed a brittle failure, the HFRP-metal bonded specimens showed progressive failure. It is shown that Weibull analysis can measure the 50% 75% and 90% survivability rates for the CFRP and the HFRP bonded composites. Tensile/shear testing of the composite to metal joints revealed a median bond strength was 43 MPa for the CFRP-metal specimen, with a brittle failure. For the HFRP-metal specimens a median bond strength of 25 MPa, exhibiting only a progressive failure. An explanation for the two different types of Failure is suggested.

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Conference: SAMPE 2024

Publication Date: 2024/05/20

SKU: TP24-0000000161

Pages: 12

Price: $24.00