Accession Number:

AD0749668

Title:

Thermal Stress Limitations of Alumina and Pyroceram 9606 A-Sandwich Radomes

Descriptive Note:

Technical memo.

Corporate Author:

JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Personal Author(s):

Report Date:

1971-09-01

Pagination or Media Count:

79.0

Abstract:

A study was made to define the flight limitations of supersonic missiles which are imposed by thermal stress failure of ceramic A-sandwich radome structures. The investigation verified the accuracy of an analytical model for determining thermal stresses in sandwich materials, and then used this model to define the thermal stress limits of alumina Al2O3 and Pyroceram 9606 A-sandwich radomes when flown on supersonic trajectories. Velocity versus time plots of a number of A-sandwich wall configurations are presented, each showing the time of thermal stress failure for a particular trajectory. These give a representative picture of the flight limitations of alumina and Pyroceram 9606 A-sandwich radomes.

Subject Categories:

  • Guided Missiles
  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE