Accession Number : ADA319309

Title :   Strength Investigations in Aircraft Construction Under Repeated Application of the Load.

Descriptive Note : Technical memo.,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON DC

Personal Author(s) : Gassner, E.

PDF Url : ADA319309

Report Date : AUG 1946

Pagination or Media Count : 12

Abstract : In the calculation of the dimensions of modern machines and building constructions account is taken of the frequency of the occurrence of the anticipated loads. It is generally assured that these loads will be repeated an infinite number, or at any rate some millions, of times during the total working life of the construction. When calculating the dimensions of the structural parts of aircraft, on the contrary, a consideration only of those frequencies in the appearance of the loads which actually come into play in the various states of stress is allowable. This is because in aircraft construction it is absolutely essential not only to ensure adequate structural strength but also to keep down the structural weight to the lowest possible limit. Strength tests in which this requirement is directly taken into account have recently been carried out by the DVL Material Strength Department.

Descriptors :   *AIRCRAFT, *CONSTRUCTION, TEST AND EVALUATION, STRUCTURAL PROPERTIES, STRENGTH(GENERAL), WEIGHT, PARTS.

Subject Categories : Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE