Accession Number:

AD0643733

Title:

THEORETICAL ANALYSIS OF UNSTEADY HEATING AND DESTRUCTION OF A GLASS PLASTIC IN THE REGION OF THE STAGNATION POINT,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1966-09-02

Pagination or Media Count:

15.0

Abstract:

A schematic model of unsteady destruction of a complex glass-like material consisting of glass fiber filler and an organic binder is proposed. The process of thermal expansion of the binder is calculated taking into account the kinetics of the chemical reaction. The interaction of the processes of fusion and coking is analyzed and the effect of separate thermophysical parameters on the surface temperature and the rate of mass removal from the heat-insulating material is shown. A typical glass-plastic is composed of glass fiber cemented together by an organic resin. The process of unsteady destruction of such a material in a high-temperature flow of gas includes in a certain temperature range the formation of a zone of thermal expansion coking of the organic binder, filtration of the gaseous products of coking through the porous remainder, and gradual softening of this remainder with the formation of a liquid film of melt. Author

Subject Categories:

  • Physical Chemistry
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE