Deformation behavior of aluminum alloy rivets for aerospace applications
Solid rivets made of high-strength aluminum alloys are often used for mechanical joining of aircraft structures. For numerical modeling of riveting processes the detailed description of the deformation behavior of the rivets is of utmost importance; however, only very little reliable material data a...
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| Language: | English |
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424022646 |
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| author | Zahra Silvayeh Markus Brillinger Josef Domitner |
| author_facet | Zahra Silvayeh Markus Brillinger Josef Domitner |
| author_sort | Zahra Silvayeh |
| collection | DOAJ |
| description | Solid rivets made of high-strength aluminum alloys are often used for mechanical joining of aircraft structures. For numerical modeling of riveting processes the detailed description of the deformation behavior of the rivets is of utmost importance; however, only very little reliable material data are available. Therefore, this study reviews and investigates the deformation behavior of commercial MS20426AD3-5 countersunk rivets made of aluminum alloy AA-2117-T4 as typically used in aerospace applications. The self-consistent procedure for determining the material-specific flow curve includes (i) the exact preparation of cylindrical samples, (ii) compression testing of the samples at testing speeds of 0.05 mm/s, 0.5 mm/s and 5 mm/s, and (iii) inverse numerical modeling of the testing procedure. In general, the compliance of the testing setup must be considered for obtaining reliable flow curves, especially when testing small samples. The determined flow curve of aluminum alloy AA-2117-T4 showed higher yield stress and more distinct initial strain hardening than most of the flow curves published in literature. Although the flow curve did not show any significant strain rate dependency, notable softening due to deformation-induced adiabatic heating of the compressed sample was observed at the highest testing speed. However, the fracture strain seems to be strain rate-dependent, because samples deformed at the low testing speed did not show any signs of macroscopic fracture, whereas local fracture occurred in samples deformed at the medium and high testing speeds. |
| format | Article |
| id | doaj-art-c879255ffdca4e9d87204eb351bfd173 |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-c879255ffdca4e9d87204eb351bfd1732025-08-20T01:57:21ZengElsevierJournal of Materials Research and Technology2238-78542024-11-01333482349110.1016/j.jmrt.2024.09.259Deformation behavior of aluminum alloy rivets for aerospace applicationsZahra Silvayeh0Markus Brillinger1Josef Domitner2Graz University of Technology, Research Group of Lightweight and Forming Technologies, Inffeldgasse 11/I, 8010 Graz, Austria; Corresponding author.Pro2Future GmbH, Inffeldgasse 25F/I, 8010 Graz, AustriaGraz University of Technology, Research Group of Lightweight and Forming Technologies, Inffeldgasse 11/I, 8010 Graz, AustriaSolid rivets made of high-strength aluminum alloys are often used for mechanical joining of aircraft structures. For numerical modeling of riveting processes the detailed description of the deformation behavior of the rivets is of utmost importance; however, only very little reliable material data are available. Therefore, this study reviews and investigates the deformation behavior of commercial MS20426AD3-5 countersunk rivets made of aluminum alloy AA-2117-T4 as typically used in aerospace applications. The self-consistent procedure for determining the material-specific flow curve includes (i) the exact preparation of cylindrical samples, (ii) compression testing of the samples at testing speeds of 0.05 mm/s, 0.5 mm/s and 5 mm/s, and (iii) inverse numerical modeling of the testing procedure. In general, the compliance of the testing setup must be considered for obtaining reliable flow curves, especially when testing small samples. The determined flow curve of aluminum alloy AA-2117-T4 showed higher yield stress and more distinct initial strain hardening than most of the flow curves published in literature. Although the flow curve did not show any significant strain rate dependency, notable softening due to deformation-induced adiabatic heating of the compressed sample was observed at the highest testing speed. However, the fracture strain seems to be strain rate-dependent, because samples deformed at the low testing speed did not show any signs of macroscopic fracture, whereas local fracture occurred in samples deformed at the medium and high testing speeds.http://www.sciencedirect.com/science/article/pii/S2238785424022646Aerospace industryAircraft structureAircraft designAluminum alloySolid rivetDeformation behavior |
| spellingShingle | Zahra Silvayeh Markus Brillinger Josef Domitner Deformation behavior of aluminum alloy rivets for aerospace applications Journal of Materials Research and Technology Aerospace industry Aircraft structure Aircraft design Aluminum alloy Solid rivet Deformation behavior |
| title | Deformation behavior of aluminum alloy rivets for aerospace applications |
| title_full | Deformation behavior of aluminum alloy rivets for aerospace applications |
| title_fullStr | Deformation behavior of aluminum alloy rivets for aerospace applications |
| title_full_unstemmed | Deformation behavior of aluminum alloy rivets for aerospace applications |
| title_short | Deformation behavior of aluminum alloy rivets for aerospace applications |
| title_sort | deformation behavior of aluminum alloy rivets for aerospace applications |
| topic | Aerospace industry Aircraft structure Aircraft design Aluminum alloy Solid rivet Deformation behavior |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424022646 |
| work_keys_str_mv | AT zahrasilvayeh deformationbehaviorofaluminumalloyrivetsforaerospaceapplications AT markusbrillinger deformationbehaviorofaluminumalloyrivetsforaerospaceapplications AT josefdomitner deformationbehaviorofaluminumalloyrivetsforaerospaceapplications |