Accession Number : AD0429832


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


Corporate Author : GENERAL DYNAMICS/FORT WORTH TEX


Personal Author(s) : Mooney,C H ,Jr


Report Date : 28 Feb 1961


Pagination or Media Count : 48


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)


Descriptors :   *ADHESIVES , HIGH TEMPERATURE , SCIENTIFIC RESEARCH , HIGH TEMPERATURE , SCIENTIFIC RESEARCH , HIGH TEMPERATURE , AIRFRAMES , ALUMINUM , GLASS TEXTILES , PHENOLIC PLASTICS , NITRILE RUBBER , MECHANICAL PROPERTIES , COMPRESSIVE PROPERTIES , CREEP , TABLES(DATA) , NOMOGRAPHS


Distribution Statement : APPROVED FOR PUBLIC RELEASE