Comparison of fatigue life of 2024 and 7475 friction welded joints with kissing bond defects

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F19%3AN0000025" target="_blank" >RIV/00010669:_____/19:N0000025 - isvavai.cz</a>
Result on the web
<a href="http://experimentalni-mechanika.cz/en/konference/konference/2019.html" target="_blank" >http://experimentalni-mechanika.cz/en/konference/konference/2019.html</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Comparison of fatigue life of 2024 and 7475 friction welded joints with kissing bond defects
Original language description
The paper analyses and compares the static and fatigue properties of 7475 T7351 and 2024 T3 aluminum alloy plate materials with friction stir welded (FSW) joints in order to determine a critical size of the kissing bond (KB) flaw that will not significantly decrease the weld performance. While the static tensile strength of the FSW decreases with KB increase, the yield strain in not influenced by the KB presence. The flaw affects the material structure locally, which leads to a decrease in the fatigue properties. The crack initiation area (KB or out of KB initiation) provides information about significant decrease of fatigue properties of FSW joint. Comparison of both material sensitivity to KB defects lead to conclusion that 7475 material is more sensitive to KB defect in comparison to the 2024 plate material.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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