The Mechanical Mechanism and Influencing Factors of Ice Adhesion Strength on Ice-Phobic Coating

Journal of Marine Science and Engineering

Chao Wang¹  Tianhui Hao²  Zhonghua Shi²  Qiang Xie²  Zhenhang Kang²  Jifeng Zhang² 

[1] Institute of Petro-Chemistry, Heilongjiang Academy of Science, Harbin 150030, China;Key Laboratory of Advanced Ship Materials and Mechanics, School of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China;

关键词: interfacial debonding;    finite element simulation;    cohesive zone model;    ice-phobic coating;    interpenetrating polymer networks;    elastic modulus;   

DOI  :  10.3390/jmse9030315

来源: DOAJ

【 摘 要 】

Ice accretion can cause problems on polar ships, ocean platforms, and in other marine industries. It is important to understand the interface debonding behavior between ice and the surface of equipment. In this work, we created a mechanical model to analyze the interface debonding behavior between a square-based ice cuboid and an elastic coating base, using contact mechanics and fracture mechanics. Three-dimensional (3D) finite element (FE) simulation was used to simulate the interface debonding for normal and shear separation. A bilinear cohesive zone model (CZM) was used to simulate the interface between the ice cuboid and the elastic coating. We investigated the effect of the elastic modulus E of an elastic film on the critical detachment force F_c for normal and shear separation. The results showed that F_c increases with an increase of the elastic modulus of the elastic film. When E exceeds a certain level, F_c achieves a constant value and then remains stable. Finally, a series of epoxy/polydimethylsiloxane (PDMS) interpenetrating polymer-network (IPN) gel coatings with different elastic moduli were prepared. The ice tensile and shear adhesion strengths (σ_ice and τ_ice) of the coatings were measured. The results were roughly consistent with the results of the numerical simulation when E < 1 MPa.

【 授权许可】

Unknown