A high throughput tensile ice adhesion measurement system

Mirshahidi, Kiana; Zarasvand, Kamran Alasvand; Luo, Wenting; Golovin, Kevin

doi:10.1016/j.ohx.2020.e00146

Cited by 14 publications

(20 citation statements)

References 30 publications

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“…The shape and geometry of the ice mould were optimised to achieve a uniform stress distribution across the contact area. More details on the tensile method and its construction were reported previously [28]. A digital force gauge of a similar configuration as that of HPM was used.…”

Section: Normal Tensile Methodsmentioning

confidence: 99%

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Comparative study on the influence of surface characteristics on de-icing evaluation

et al. 2021

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A comparative study of de-icing evaluation methods was conducted in this work, and their variations in response to surface characteristics were investigated. The mechanical de-icing measurements include centrifugal, push, and tensile methods. The centrifugal and the horizontal push (shear) methods suggested a linear relationship of ice adhesion strength with surface roughness, whereas the tensile (normal) method indicated an inverse curvilinear relationship with contact angle hysteresis. A partial correlation of contact angle hysteresis on the shear-based methods was also indicated over a specified range of surface roughness. Further attempts were also made on 1H,1H,2H,2H-perfluorooctyltriethoxysilane-coated surfaces, and the ice adhesion indicated a clear reduction in the normal de-icing method, whereas the shear-based methods did not show a considerable change in ice adhesion, highlighting their mechanical forces-centric response. Lastly, a further evaluation using a hybrid de-icing method was conducted, to verify the influence of surface characteristics on ice removal involving heating, which demonstrated a partial correlation of energy consumption with the ice adhesion strength over a specified range of surface roughness. The results obtained in this study provide crucial information on the influence of surface characteristics on ice adhesion and offer material-dependent correlations of the popular de-icing evaluation methods. The conclusions could be applied to define an appropriate testing method for the evaluation of icephobic surfaces and coatings. Graphical abstract

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Section: Normal Tensile Methodsmentioning

confidence: 99%

“…In an NTM method, a uniform distribution of shear stresses might be approached on a tensile method [28] as the tensile method mainly involves the peeling stresses, the mechanism is illustrated in Fig. 5e.…”

Section: Fracture Mechanism At Ice/solid Interfacesmentioning

confidence: 99%

Comparative study on the influence of surface characteristics on de-icing evaluation

et al. 2021

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“…While direct mechanical and centrifuge testing represent the majority of the research found in the current literature [11][12][13][14][15][20][21][22][23][24], additional miscellaneous tests have emerged that involve various apparatuses and methodologies, and these will be discussed separately in this review. Mechanical testing can be further classified according to the four common direct methods, including horizontal shear test [10,[25][26][27][28][29][30][31][32][33][34][35], vertical shear test [11,36], and tensile test [37][38][39], which are schematically depicted in Figure 1. Unlike centrifuge testing, mechanical testing can be conducted on stationary equipment, such as a tensile testing machine or a cold plate with a push rod [27,28,36].…”

Section: Ice Adhesion Testing Methodsmentioning

confidence: 99%

“…Mechanical testing can be further classified according to the four common direct methods, including horizontal shear test [10,[25][26][27][28][29][30][31][32][33][34][35], vertical shear test [11,36], and tensile test [37][38][39], which are schematically depicted in Figure 1. Unlike centrifuge testing, mechanical testing can be conducted on stationary equipment, such as a tensile testing machine or a cold plate with a push rod [27,28,36].…”

Section: Ice Adhesion Testing Methodsmentioning

confidence: 99%

“…However, these different ice formation processes will generate different types of ice with different qualities, resulting in different adhesion strength values. Furthermore, two different fracture modes can occur during ice adhesion testing, adhesive and cohesive, depending on various parameters, including the substrate and the conditions during freezing [36][37][38][39][40]. Cohesive failure occurs when the ice itself fails or breaks, often leaving some ice on the substrate surface [36][37][38][39][40].…”

Section: Ice Adhesion Testing Methodsmentioning

confidence: 99%

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Current Ice Adhesion Testing Methods and the Need for a Standard: A Concise Review

Bleszynski

Clark

2021

Standards

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Ice accretion is a serious problem in cold climates, causing automobile and airplane accidents, as well as severe economic losses throughout various sectors. To combat these issues, many solutions have been developed, such as de-icing materials, which can delay or prevent the adhesion of ice to a surface through chemical, temperature, or physical means. To effectively assess the properties of a de-icing material, ice adhesion testing must be conducted, of which there are numerous types, each with their own characteristics. Unfortunately, the same material, tested with different methods, may provide very different ice adhesion values. This makes it difficult to properly characterize a material’s de-icing properties and compare values across the literature. In this review, we identified the main ice adhesion testing methods and compared ice adhesion values for a particular material with different testing methods. We then discussed some of the main issues with current ice testing methods and identified some of the main factors that may affect ice adhesion values, namely ice quality and the use of a mold, which may significantly affect the final ice adhesion results. Finally, we proposed a new, simple standard testing method, in an attempt to eliminate some of the issues with current ice testing methods.

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Durable Metallic Surfaces Capable of Passive and Active De‐Icing

et al. 2022

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Ice accretion has adverse effects on several industrial sectors worldwide. Sparsely suspended, thin metallic sheets (buckling elastomer‐like anti‐icing metallic surfaces, or BEAMS) recently demonstrated extremely low ice adhesion strengths while maintaining durability. Here, BEAMS are designed using elastomeric suspension points shaped as channels, enabling active de‐icing by flowing air underneath the suspended sheet. The channel geometry is optimized using computational fluid dynamics by iterating through various channel dimensions and flow conditions. An experimental setup is constructed and utilized to assess BEAMS comprised of 1–4 channels. Active de‐icing is achieved by pressurizing the air within the channels to bulge the sheet outward and delaminate accreted ice from the interface. Active de‐icing is achieved by flowing room temperature air through the channels to heat the surface and melt the interface. Passive de‐icing is also observed under atmospheric icing conditions. Rime is accreted within an icing wind tunnel on multichannel BEAMS. Ice adhesion strengths <8 kPa are maintained after ten consecutive icing/de‐icing runs, demonstrating substantial durability. The active and passive de‐icing capability of channeled BEAMS makes it a promising candidate for improving the operational efficiency of infrastructure in cold environments.

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A high throughput tensile ice adhesion measurement system

Cited by 14 publications

References 30 publications

Comparative study on the influence of surface characteristics on de-icing evaluation

Comparative study on the influence of surface characteristics on de-icing evaluation

Current Ice Adhesion Testing Methods and the Need for a Standard: A Concise Review

Durable Metallic Surfaces Capable of Passive and Active De‐Icing

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