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Stress-relieving techniques for cantilever beam tests in an ice cover

From National Research Council Canada

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  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
Subjectcantilever beams; flexural strength; ice; tests; freshwater ice; stress relief holes effects; finite element analysis; stress concentrations; resistance a la flexion; glace ( gel); essai
Abstract
Cantilever beam tests carried out on a freshwater ice cover showed that introducing stress relief holes at the root of the beam increased flexural strength, as determined from simple beam theory, by 1/4 to 1/3, compared to conventional cantiliever beams. Finite element analysis confirmed the existence of stress concentrations at the edge of the beam, 1.5 times the centre stress for the case of a stress relief hole and 2 times in the case of a cantilever beam without stress relief holes. A correction factor of 1.08 has been determined for the flexural strength of cantilever beams with stress relief holes at the root; for those with no special root treatment, the correction factor is 1.35.
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  • Cold Regions Science and Technology 11, no. 3 (November 1985): 247–253.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-1343
NRC numberNRCC 25263
NRC-IRC-1949
NPARC number20377738
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Record identifier25b15ece-3463-41cf-841a-892d1cc32cdf
Record created2012-07-24
Record modified2020-06-06
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