This report contains the results of a pilot cooperative experimental programme which investigated the interaction of fastener hole quality and resulting fatigue lives of low load transfer structural joints when subsequently utilizing fatigue rated and non-fatigue rated fastener systems. These fastener systems were primarily loaded in shear. A load level verification was made and it was established that there were few differences, within the range of testing frequencies used in this pilot programme, in the accuracy of loading or comparability of data between participants. Highlights of the data indicated that interference fit fasteners may be relatively insensitive to effects of surface finish and hole quality with the exception of dimensional tolerance which is important because it affects interference fit. Interference fit fasteners gave better results than clearance fit. (DePo)
Critically loaded hole technology pilot collaborative test programme
Versuchsprogramm fuer die Bewertung der kritischen Last bei Loechern fuer Befestigungselemente
US Government Reports ; Nov ; 1-61
1980
61 Seiten
Report
Englisch
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