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https://hdl.handle.net/11681/5826Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | United States. Office of Naval Research | - |
| dc.contributor.author | Weeks, W. F. | - |
| dc.contributor.author | Assur, A. | - |
| dc.date.accessioned | 2016-03-21T21:08:44Z | - |
| dc.date.available | 2016-03-21T21:08:44Z | - |
| dc.date.issued | 1969-09 | - |
| dc.identifier.uri | http://hdl.handle.net/11681/5826 | - |
| dc.description | Research Report | - |
| dc.description | Abstract: The increased activity in cold regions has made a thorough understanding of fracture in lake and sea ice quite desirable, inasmuch as this information has application to a number of problems of geophysical as well as engineering importance. This survey starts with a discussion of the structure of ice I and the macro- and microstructure of sea and lake ice as well as their chemistry and phase relations. Recent work on the direct observation of dislocations as well as the formation of cracks in ice is summarized. Formal ice-brine-air models for analyzing variations in ice strength are also reviewed. The results of the different types of tests are discussed and cornpared (compressive, indentation, direct and ring-tension, small beam flexure and in situ cantilevers and simple beams, shear, and impact). Scale effects are considered as well as the rapid strength deterioration experienced by ice sheets in the spring. Finally, a number of recommendations are made concerning future research in this field. | - |
| dc.publisher | Cold Regions Research and Engineering Laboratory (U.S.) | - |
| dc.publisher | Engineer Research and Development Center (U.S.) | - |
| dc.relation | http://acwc.sdp.sirsi.net/client/en_US/search/asset/1013640 | - |
| dc.relation.ispartofseries | Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 269. | - |
| dc.rights | Approved for public release; distribution is unlimited. | - |
| dc.source | This Digital Resource was created from scans of the Print Resource | - |
| dc.subject | Ice breakers | - |
| dc.subject | Ice breakup | - |
| dc.subject | Ice disintegration | - |
| dc.subject | Ice navigation | - |
| dc.subject | Ice openings | - |
| dc.subject | Floating ice | - |
| dc.subject | Fracture properties | - |
| dc.subject | Fracture mechanics | - |
| dc.subject | Ice fracturing | - |
| dc.subject | Lakes | - |
| dc.subject | Lake ice | - |
| dc.subject | Pack ice | - |
| dc.subject | Sea ice | - |
| dc.title | Fracture of lake and sea ice | - |
| dc.type | Report | en_US |
| Appears in Collections: | Research Report | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CRREL-Research-Reports-269.pdf | 7.65 MB | Adobe PDF |  View/Open |