Numerical Simulation of the Cold Expansion and Residual Stress Relaxation for Aluminum Alloy 7050
2011 ◽
Vol 117-119
◽
pp. 1656-1661
Keyword(s):
Cold expansion is a well-known technique for improving the fatigue life of fastener holes in aeronautical structures by introducing a compressive residual stress field around them. In this paper, a 3-D finite element model is used to analyze the residual stress distribution and relaxation around an expanded hole for aluminum alloy 7050. The results reveal that the cutting process of split sleeve cold expansion and creep are main reason for residual stress relaxation in room temperature, which may limit the beneficial effects of cold expansion.
2011 ◽
Vol 462-463
◽
pp. 343-348
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2010 ◽
Vol 132
(3)
◽
2009 ◽
Vol 131
(3)
◽
2014 ◽
Vol 45
◽
pp. 1-14
◽
Keyword(s):
2021 ◽
Vol 39
(1)
◽
pp. 189-196
Keyword(s):
2017 ◽
Vol 887
◽
pp. 89-95
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