Laboratory Investigation of the Fracture Behavior of Polycrystalline Ice, Phase II

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TypeTechnical Report
Series titleTechnical Report
AbstractThe tests described in this data report have been designed primarily to test the repeatability of results from Phase I of testing. In Phase I, indentation tests were performed as a joint collaboration between Memorial University of Newfoundland and the Institute for Ocean Technology (NRC-IOT). The test specimens were made of polycrystalline ice with a grain size of ~4 mm. Two cm cubed monocrystals were placed at specific locations within the specimen with the c-axis of the monocrystal placed either parallel or perpendicular to the axis of indentation. Four groups of tests were completed as part of Phase II. Group 1 tested specimens that did not include an embedded monocrystal. This will allow for a more thorough investigation of the influence of the presence of an embedded crystal. Group 2 consisted of a number of repeats of experiments from Phase I. This group will be used to investigate the influence of the orientation of the c-axis of the embedded monocrystal. Group 3 used ice specimens with no embedded crystal and were performed at a velocity expected to produce cyclic loading. This will allow the link between cyclic loading and ice crushing to be studied in greater detail. Finally, Group 4 consisted of tests performed on specimens with the same dimensions as in phase I but with different compositions (compressed snow, ~4mm polycrystalline ice with air bubbles, and bubble-free ice with a highly irregular grain structure). This will allow the influence of ice composition to be studied in greater detail.
Publication date
PublisherNational Research Council Canada. Institute for Ocean Technology
PlaceSt. John's, NL
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number6581
NPARC number8895686
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Record identifier356f1651-f2e5-4780-ab70-9b64f4b2b6c8
Record created2009-04-22
Record modified2016-10-03
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