Accession Number : AD0631573

Title :   FATIGUE LOADS APPLIED ON A FULL-SCALE STRUCTURE IN RANDOM AND PROGRAMMED SEQUENCES.

Descriptive Note : Scientific rept.,

Corporate Author : NATIONAL AERO- AND ASTRONAUTICAL RESEARCH INST AMSTERDAM (NETHERLANDS)

Personal Author(s) : Schijve,J.

Report Date : 30 APR 1964

Pagination or Media Count : 31

Abstract : For an investigation on the equivalence of random and programmed fatigue loads eight full-scale wing center sections were tested. The report describes the load sequences applied in the tests. The random sequence was derived from a strain-gage record obtained with an aircraft flying in turbulent air. This record was amplified and adapted to the fatigue machine. The statistical properties as obtained by several methods, counting peak loads or load ranges, are presented. The load sequence for the program tests and the assessment of the ground-to-air cycles are described. The loads applied in each of the eight tests are summarized. Brief comments on the results are given. (Author)

Descriptors :   (*WINGS, LOADS(FORCES)), (*FATIGUE(MECHANICS), WINGS), STRUCTURES, SEQUENCES(MATHEMATICS), TESTS, NETHERLANDS, TRANSPORT AIRCRAFT

Subject Categories : Transport Aircraft
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE