AN INQUIRY INTO THE EFFECT OF PLASTIC DEFORMATION ON THE FATIGUE LIFE OF DURALUMINUM SHEETS WITH NOTCHED HOLES (BADANIA WPLYWU ZGNIOTU PLASTYCZNEGO NA TRWALOSC ZMECZENIOWA DURALOWYCH BLACH Z KARBEM),

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Abstract:

The investigation described concerns the fatigue life properties of 1 mm and 2 mm PA-7T specimens under constant amplitude loads. An adequately calibrated 3 mm central hole was provided to act as a stress concentrator. A higher increase of the fatigue life was observed for narrow specimens and lower stress levels. For wider specimens and higher stress levels this increase was distinctly lower. In the range investigated, the increase of the fatigue life as a function of plastic deformation of the diameter of the hole was found to be linear or quasi-linear. Author

Author(s):
Jancelewicz, Bohdan
Author Organization(s):
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH
Supplementary Note:
Edited trans. of Archiwum Budowy Maszyn (Poland) v13 n1 p129-44 1966.
Annotation:
An inquiry into the effect of plastic deformation on the fatigue life of duraluminum sheets with notched holes--Translation.
Pagination:
0022

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FTD-HT-67-258
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*ALUMINUM ALLOYS, FATIGUE(MECHANICS)), SHEETS, DEFORMATION, STRESSES, NOTCH SENSITIVITY, LOADS(FORCES), PLASTIC PROPERTIES
Field(s)/Group(s):
Metallurgy and Metallography, Mechanics
Keyword(s):
TRANSLATIONS
Report Date:
1967 Sep 15