Analysis of Sandwich Material.
Abstract
The primary objective of this investigation was to study the effects of moisture on paper honeycomb materials used by the military services. The controlled environmental variables were liquid water at 75F, saturated water vapor at 125F and 175F, and an environmental cycle from 30F to 250F. The controlled structural variables were those of paper weight, percent phenolic impregnation density, cell size, and basic core materials. The resulting study was then concerned with the following characteristics: (1) How moisture enters the honeycomb panel, (2) The methods of moisture migration, (3) Detection of moisture in the panels (4) The rate of migration, (5) A method of testing cores for water migration characteristics, (6) The effect of moisture on the ultimate tensile, compressive, and shear strengths of the honeycomb panels, (7) The effect of moisture on the honeycomb panels sound attenuation characteristics, (8) The effect of water on the thermal conductivity of honeycomb panels (9) The various effects of photographic chemicals on the honeycomb panels, (10) Improvements, if any, in the military test methods for honeycomb panels, and any possible specification changes. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1969
- Accession Number
- AD0864148
Entities
People
- Bruce G. Clark
- Dennis A. Horazak
- George E. Ruck
- John M. Watkins
- Owen E. Buxton Jr.
Organizations
- Ohio State University