Sandwich Construction and Core Materials. Part V. SECTION I Some Physical Properties of an Extruded Cellular Cellulose Acetate SECTION II The Determination of Poisson's Ratio in Compression of Certain Low Density Materials

摘要

Tensile, Compressive and Creep tests have been carried out on four different samples of Extruded Cellular Cellulose Acetate. It is concluded that the material is comparable with calcium alginate and other low-density materials so far handled in the Engineering Division, N.P.L. In particular, the samples are not subject to the same degree of ' softening' as has been the case with some similar materials. The ' filled ' samples are more efficient than the ' unfilled ' ones and are worth considering as possible low-density stabilizers in sandwich construction.