Experimental Investigation on Ice–Aluminum Interface Adhesion Strength under Heating Conditions

Ice accumulation on airfoils and engines seriously endangers fight safety. The design of anti-icing/de-icing systems calls for an accurate measurement of the adhesion strength between ice and substrates. In this research, a test bench for adhesion strength measurement is designed and built. Its reli...

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Bibliographic Details
Published in:Aerospace 2024-02, Vol.11 (2), p.152
Main Authors: Wang, Yusong, Zhu, Chengxiang, Xiong, Ke, Zhu, Chunling
Format: Article
Language:English
Subjects:
Adhesion
adhesion strength
Adhesive strength
Aircraft
aircraft de-icing
Aluminum
Analysis
Chemical bonds
Composite materials
Deicing
Energy consumption
Environmental aspects
experimental setup
Freeze time
Freezing
Friction
Heating
heating power
Hydrophobic surfaces
Ice
Ice accumulation
Ice prevention
initial temperature
Interfaces
Methods
Properties
Research methodology
Safety engineering
Shear strength
Substrates
Temperature rise
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Summary:Ice accumulation on airfoils and engines seriously endangers fight safety. The design of anti-icing/de-icing systems calls for an accurate measurement of the adhesion strength between ice and substrates. In this research, a test bench for adhesion strength measurement is designed and built. Its reliability and accuracy are verified by the calibration. The adhesion strength is first measured at different loading speeds and freezing times, and the most suitable values are determined based on the results. Then, the variation in adhesion strength with heating temperatures at different initial substrate temperatures and different heating powers is investigated. Parameter AW is defined to evaluate the heating power from the point of view of energy consumption and adhesion strength. As a result, the loading speed and the freezing time are determined to be 0.5 mm/s and 90 min, respectively. The adhesion strength degrades as the heating temperature increases. As the initial temperature drops, the adhesion strength decreases more slowly. Furthermore, the temperature of WAS (Weak Adhesion State) under heating varies with the initial temperature. Heating with a high power will yield more reduction in adhesion strength for the same temperature increase. The values of AW illustrate that a medium power heating is more favorable to reduce the adhesion strength with a low energy consumption.
ISSN:2226-4310
2226-4310
DOI:10.3390/aerospace11020152