UID:
kobvindex_GFZ20190703153737
Format:
iv, 26 Seiten
,
Illustrationen
Series Statement:
CRREL Report 85-17
Content:
This report presents the results of tests of the ice friction coefficient carried out during the May 1984 expedition of the F.S. Polarstern off the coast of Labrador. The test surfaces were Inerta-160-coated steel plates and bare steel plates, hand roughened and sandblasted. The main findings of the studies were:
1) columnar and granularpea ice showed no significant differences in friction coefficient;
2) for columnar ice was independent of ice crystal orientation with respect to test surface;
3) was Independent of normal pressure applied on ice sample;
4) initially decreased with increasing relative velocity between the Ice sample and the test surface and reached a steady value at higher speeds;
5) Uk increased with increasing surface roughness;
6) a wetting surface exhibited a higher friction coefficient than a non-wetting surface of the same or even higher roughness average.
Note:
CONTENTS
Abstract
Preface
Introduction
Test procedure
Test apparatus
Test surfaces
Ice samples
Test program
Results and discussion
Effect of wear of ice sample
Effect of normal pressure
Effect of velocity, crystal orientation and surface conditions
Results summary
Comparison with laboratory study
Recommendations on test apparatus
Literature cited
Appendix A : Test results
In:
CRREL Report, 85-17
Language:
English
Keywords:
Forschungsbericht
URL:
https://apps.dtic.mil/dtic/tr/fulltext/u2/a163170.pdf
URL:
https://hdl.handle.net/11681/9413
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