Effect of Temperature on the Strength of Snow-ice

Effect of Temperature on the Strength of Snow-ice
Author: F. Donald Haynes
Publisher:
Total Pages: 18
Release: 1978
Genre: Snow
ISBN:

Uniaxial compression and tension tests were conducted on polycrystalline snow-ice to determine the effect of temperature on its strength. Test temperatures ranged from -0.1 C to -54 C. Two machine speeds, 0.847 mm/s and 84.7 mm/s were used for the constant displacement rate tests. The compressive strength at -54 C was about one order of magnitude higher than at -0.1 C. The tensile strength at -18 C was about 20% higher than at -0.1 C. The initial tangent and 50% strength moduli are given for the compression tests, while the secant modulus to failure is given for the tension tests. The mode of fracture is discussed and the test results are compared with data from other investigations.

Strength Studies of Snow

Strength Studies of Snow
Author: Malcolm Mellor
Publisher:
Total Pages: 48
Release: 1966
Genre: Frozen ground
ISBN:

Strength measurements were made on some 650 samples of homogeneous snow prepared under controlled conditions, primarily to investigate the effect of temperature variation. Comparative measurements were made on ice and frozen sand, and the variation of ram hardness with temperature was examined. The results are discussed in terms of surface chemistry effects at crystal boundaries. The inadequacy of density measurements for describing grain structure is discussed.

Technical Report

Technical Report
Author: Cold Regions Research and Engineering Laboratory (U.S.)
Publisher:
Total Pages: 402
Release: 1977
Genre: Frozen ground
ISBN: