Thickness dependent yielding behavior and formability of AA6082-T6 alloy: experimental observation and modeling

  • Onur ÇavuşoğluEmail author
  • Halit İlhan Sürücü
  • Serkan Toros
  • Mahmut Alkan


This study analyzes thickness-dependent of the yielding behavior and forming limit diagrams (FLDs) of the AA6082-T6 aluminum alloy sheet. Mechanical behavior of the materials of 1 and 1.5 mm sheet thickness is observed having performed anisotropy and tensile tests at 0°, 15°, 30°, 45°, 60°, 75°, and 90° to the rolling direction. By using Hill-48 and Barlat-89 yield criteria, r-value and yield stress relations were defined and yield loci were obtained. Forming limit diagrams were created using experimental data and Marciniak-Kuczynski (MK) model. It was observed that increased sheet thickness also increases anisotropy while decreasing yield stress; yield locus was found to be smaller. The formability of the material increased as the sheet thickness increases.


6082 Yield locus Anisotropy Sheet metal forming Forming limit diagram 



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© Springer-Verlag London Ltd., part of Springer Nature 2020

Authors and Affiliations

  • Onur Çavuşoğlu
    • 1
    Email author
  • Halit İlhan Sürücü
    • 2
  • Serkan Toros
    • 3
  • Mahmut Alkan
    • 3
  1. 1.Faculty of Technology, Department of Manufacturing EngineeringGazi UniversityAnkaraTurkey
  2. 2.Bor Vacational SchoolNiğde Ömer Halisdemir UniversityNiğdeTurkey
  3. 3.Faculty of Engineering, Department of Mechanical EngineeringNiğde Ömer Halisdemir UniversityNiğdeTurkey

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