Accession Number : AD0694376

Title :   DETERMINING THE DYNAMIC PROPERTIES OF SNOW AND ICE BY FORCED VIBRATION.

Descriptive Note : Technical rept.,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s) : Smith,North

Report Date : JUN 1969

Pagination or Media Count : 25

Abstract : The complex dynamic Young's and shear moduli, loss factor and Poisson's ratio are presented for naturally compacted glacial snow through a density range of 0.4 to 0.9 g/cu cm. A frequency dependence of the moduli and its effect on the computation of Poisson's ratio is demonstrated. Considerable scatter is exhibited in the loss factor measurements; however, indications are that the loss factors have negligible effect on the modulus computations. (Author)

Descriptors :   (*SNOW, MECHANICAL PROPERTIES), (*ICE, MECHANICAL PROPERTIES), MODULUS OF ELASTICITY, POISSONS RATIO, SHEAR STRESSES, TRANSDUCERS, SEISMIC WAVES, VELOCITY, COMPRESSIVE PROPERTIES, VIBRATION, GREENLAND

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE