Accession Number:

AD0259372

Title:

THE EFFECTS OF TEMPERATURE AND TIME ON AIRCRAFT AND MISSILE STRUCTURES

Descriptive Note:

Corporate Author:

STANFORD UNIV CALIF

Personal Author(s):

Report Date:

1961-01-01

Pagination or Media Count:

1.0

Abstract:

A survey is made of the new problems introduced in the structural analysis of airplanes and missiles by the high temperatures caused by aerodynamic heating. Thermal stresses, thermal buckling, the effect of creep on stress distribution and stability, and ablation are discussed and special attention is paid to the behavior of the pure shells used in missiles. It is concluded that the modern structural analyst must acquire a knowledge of many disciplines that were of no interest to his predecessor working before World War II. Among these disciplines are thermodynamics, metallurgy, and the physics of the solid state. In all the new problems two parameters appear that did not enter classical structural analysis. The first is temperature which is the cause of all the difficulties of the modern structural designer and analyst. The second is time, because at high temperatures no structure can carry loads for indefinitely long periods. One of the most important tasks of the analyst of missiles is the determination of the lifetime of the structure. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE