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Seasonal effects on the flexural strength of river ice
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
2002 (English)In: Ice in the Environment: proceedings 16th International Symposium on Ice, Dunedin, New Zealand, 2 - 6 December 2002 / [ed] Vernon Squire, Dunedin: Dep. of Physic, Univ. of Otago , 2002, Vol. 1, 402-409 p.Conference paper, Published paper (Refereed)
Abstract [en]

River ice at the same location has been tested (through 4-point bending of simply supported beams) on a regular basis during three winter seasons. This paper describes the method briefly and presents the seasonal variations of the flexural strength and elastic modulus. In general, the flexural strength of beams tested with the bottom surface in tension stayed constant until solar radiation penetrated the ice cover. A possible effect due to the beam size was indicated. The results for the flexural strength of beams tested with the top surface in tension were on the other hand scattered, with high values in December and much lower values in March. In April, after melting periods, the top layer strength recovered. The elastic modulus was usually independent of the bending direction, but for certain snow-ice beams there was a strong relationship between the elastic modulus and the flexural strength.

Place, publisher, year, edition, pages
Dunedin: Dep. of Physic, Univ. of Otago , 2002. Vol. 1, 402-409 p.
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-39657Local ID: e7d816b0-a289-11dc-ac39-000ea68e967bISBN: 1-877139-52-1 (print)OAI: oai:DiVA.org:ltu-39657DiVA: diva2:1013173
Conference
International Symposium on Ice : 02/12/2002 - 06/12/2002
Note
Godkänd; 2002; 20071204 (frans)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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