71b1512e-6246-4db4-8e08-d28a3ddd0b1420210603061056005naun:naunmdt@crossref.orgMDT DepositInternational Journal of Mechanics1998-444810.46300/9104http://www.naun.org/cms.action?id=2828128202112820211510.46300/9104.2021.15https://www.naun.org/cms.action?id=23280Local Elasto–plastic Buckling of Isotropic Plates With Cutouts Under Tension Loading ConditionsMarekBarskiChair of Machine Design and Composite Structures, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, PolandAdamStawiarskiChair of Machine Design and Composite Structures, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, PolandPaweł J.RomanowiczChair of Machine Design and Composite Structures, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, PolandBogdanSzybińskiChair of Machine Design and Composite Structures, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, PolandThe motivation of the presented study was the observation of the existence of local loss of stability “tension buckling” in the experimental tests of composite and metallic plates with cut-outs subjected to tension. Because of this, the numerical analyses of the aluminum plate with elliptical or circular cutouts at the center and subjected to tensile load are studied in the paper. Although the whole structure is uniformly stretched, the circumferential compressive stresses in the vicinity of the cutout edge are observed. First of all, the linear buckling analysis is carried out for different sizes of the holes. Based on these results, the size of the hole is chosen, where the circumferential stress magnitude in the vicinity of the cutout is the lowest or even comparable to the yield stress of the material. The computations are made for three different values of thickness. 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