Authors: A T Brammer J B Jordon P G Allison M E Barkey
Publish Date: 2012/10/09
Volume: 22, Issue: 5, Pages: 1348-1350
Abstract
One of the most commonly extruded aluminum alloys is the 6061 alloy largely because of its good formability and high specific strength Ref 1 The ability of the 6061 aluminum alloy to be extruded or otherwise formed into complex geometries at relatively low cost is the reason for its widespread use in aerospace construction transportation and many other industries In fact 6061 aluminum alloy has been produced in various forms including plate extrusion foil sheets pipes forgings and structural forms Ref 2 Since most load bearing components fail due to cyclic loading analytical prediction and finite element modeling of fatigue damage of such a prevalent alloy is critical for safe designsA review of literature regarding fatigue in 6061 aluminum alloys reveals most experimental studies characterized fatigue behavior based on loadcontrol cyclic tests However for applications where lowcycle fatigue LCF is dominant with variableamplitude histories and sequenceThe authors would like to acknowledge Timothy Rushing Lyan Garcia and Jeb Tingle for the encouragement of this study This research was funded by the US Army Engineer Research and Development Center Army Corp of Engineers under Contract No W912HZ11C0040 Permission to publish was granted by Director Geotechnical and Structures Laboratory
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