THEORETICAL ANALYSIS OF UNSTEADY HEATING AND DESTRUCTION OF A GLASS PLASTIC IN THE REGION OF THE STAGNATION POINT,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 02, 1966
- Accession Number
- AD0643733
Entities
People
- Yu. V. Polezhaev
Organizations
- National Air and Space Intelligence Center