Work

Study on the separation mechanism of icing adhesion and fracture on the surface of 6061 aluminum alloy

Year: 2024

Type: article

Abstract: Ice and frost accumulation pose significant threats to aviation safety. Revealing the adhesion mechanisms of surface icing and the fracture separation mechanisms of ice accretion is essential for conducting de-icing operations and designing surfaces with anti-icing properties. While extensive research has been conducted on the ductile deformation and fragmentation of ice, studies on the fracture separation mechanisms at the ice-substrate interface driven by stress and toughness are scarce. This study employs a combination of experimental research, numerical simulation, and mechanistic analysis to investigate the interface fracture mechanisms during the tensile separation of cylindrical clear ice from an aluminum alloy surface. Experimental results indicate that surface roughness is directly proportional to adhesion strength, and that adhesion strength is inversely proportional to contact area under uniform roughness conditions. Utilizing the Cohesive Zone Model (CZM) for microscale fracture stress deformation analysis and integrating experimental data with simulation results, this study elucidates the effects of surface roughness and contact area on the adhesive force between the ice and the substrate.

Source: Case Studies in Thermal Engineering

DOI: 10.1016/j.csite.2024.105620

Authors: Jing Cui, Dezheng Jiang, Zhiwei Xing, Guangfeng Yang

Institution: Civil Aviation University of China

Language: English

Topic: Icing and De-icing Technologies

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,210

Funders: National Natural Science Foundation of China, Civil Aviation Administration of China