| Download | - View final version: Dual-axis video observations of ice crushing utilizing high-speed video for one perspective (PDF, 863 KiB)
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| Author | Search for: Gagnon, R. E.; Search for: Daley, C. |
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| Format | Text, Article |
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| Conference | 18th International Conference on Port and Ocean Engineering Under Arctic Conditions, 26-30 June 2005, Potsdam, New York |
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| Abstract | Rectangular thick sections (1 cm thickness) of lab-grown monocrystalline ice have been confined between two thick Plexiglas plates and crushed at -10º C from one edge face at a rate of 1 cm/s using a transparent Plexiglas platen (1 cm thickness) inserted between the plates. The transparent plates and platen permitted side viewing of the ice behavior during crushing using high-speed video and also a top view of the ice/platen contact zone through the crushing platen using regular video. Zones of intact ice at the ice/platen interface were evident in the visual records and these were shaped by cracks and spalls. The production and flow of liquid in a thin layer at the intact ice/platen interface was also evident. A novel method was used to obtain pressure measurements at the ice/platen interface. Pressure values for the intact ice contact zones were high (at least 20 MPa) and for the crushed ice the pressure varied from low (~1 MPa) to high values (~20 MPa) depending on its thickness over intact ice. Also, wetting from liquid produced at the intact ice/ platen interface probably softened and reduced the pressure in pulverized ice. Features of the load and pressure data are discussed in the context of the visual observations. |
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| Publication date | 2005 |
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| In | |
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| Peer reviewed | Yes |
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| Identifier | IR-2005-02 |
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| NRC number | NRC-IOT-6196 |
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| NPARC number | 8894921 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | ca8327a6-70ab-4035-9d59-04b69ca42f20 |
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| Record created | 2009-04-22 |
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| Record modified | 2020-10-09 |
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