Accession Number:

AD0425054

Title:

BRAZED AIRFRAME STRUCTURE EVALUATION.

Descriptive Note:

Final rept.,

Corporate Author:

MCDONNELL AIRCRAFT CORP ST LOUIS MO

Personal Author(s):

Report Date:

1963-12-10

Pagination or Media Count:

14.0

Abstract:

This report describes evaluation test results of a brazed airframe section designed for optimum producibility. Strength testing to evaluate the design was performed by the Structural Evaluation Group of the MAC Structures Laboratory. A uniform air pressure was applied to the test section in 2 psi increments. Deflection and set was recorded at each increment of loading. Specimen O sustained a uniform pressure of 30 psi without failure or visible indication of yielding. At approximately 27 psi the root rib of Specimen 1 started buckling and failure of the specimen followed as pressure was increased to 45 psi. Failure of Specimen 2 began at 37 psi as the braze between the corrugation and the spars on the compression side started failing. Complete failure of the specimen occurred at 45 psi. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE