Accession Number:

AD0429832

Title:

STRENGTH OF BONDED STRUCTURAL COMPONENTS EXPOSED TO 325 F THRU 10,000 HOURS,

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS/FORT WORTH TEX

Personal Author(s):

Report Date:

1961-02-28

Pagination or Media Count:

48.0

Abstract:

The approximate reduction in strength of bonded aluminum sandwich construction atter 10,000 hours at 325 F is as follows 1 Flatwise tension strength 15 2 Flatwise compression strength26 3 Flatwise compression modulus-26 4 Edgewise compression strength-23 5 Core shear strength-8. Exposure to the atmosphere while at temperature results in oxidation of the core and core-to-metal adhesive and loss of strength. The metal-to-metal adhesive is not affected by exposure to the atmosphere at temperature. Exposure of sealed panels to temperature of 325 F has the beneficial effect of post curing the core resin and adhesives. Creep of the metal-to-metal adhesive does not exceed Military Spec. limitations. The materials have adequate strength to develop stresses above yield in the al faces and edgemembers of bonded sandwich construction. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE