Browse Publications Technical Papers 2019-01-1949

Utilization of Single Cantilever Beam Test for Characterization of Ice Adhesion 2019-01-1949

Aircraft and Wind turbine operating in a cold environment are challenged with icing which unfavorably affects their aerodynamics and degrades their safety. Precise characterization of the ice adhesion is crucial for the effective design of ice protection system. In this paper, a fracture mechanics-based approach incorporating asymmetric single cantilever beam test is used to characterize the interfacial fracture of a typical ice/aluminum interface with different surface roughness. The measurements showed adhesion/cohesive interfacial fracture energy values between 0.16 and 1.1 J/m 2. In this asymmetric beam test, a thin film of ice is formed between a fixed and elastically deformable beam subjected to the applied loading. The inspection of the interfacial ice fracture surface using fracture surface replication technique highlighted the association of the fracture mode with the measured macroscopic fracture toughness. The higher level of fracture toughness was associated with cohesive interface failure. While the lower level of fracture toughness on smoother surfaces was associated with adhesive interface failure.


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