20.500.12556/RUL-145687 Characterisation of out-of-plane shear behaviour of anisotropic sheet materials based on indentation plastometry This paper presents a new methodology for characterising the out-of-plane plastic anisotropy behaviour of sheet metal, based on indentation testing. Conventionally, advanced yield criteria are used to describe plastic anisotropy, requiring multiple in-plane mechanical tests (such as uniaxial and biaxial tests) to calibrate a model. However, in certain forming applications (e.g. blanking, ironing and incremental forming), the influence of mechanical behaviour through thickness cannot be ignored, necessitating the characterisation of out-of-plane material behaviour. To do this, a 3D plastic anisotropy model must be used and calibrated for the out-of-plane shear parameters, which can be difficult to determine. Researchers often assume an isotropic case or equal shear parameters for in-plane and out-of-plane behaviour. More advanced calibrations involve the crystal plasticity model. In this work, we propose a two-stage calibration procedure. In the first stage, we calibrate the in-plane parameters of the YLD2004–18p yield function conventionally. In the second stage, after fixing the in-plane parameters, we determine the remaining out-of-plane shear parameters based on the results of the ball indentation test. We show for the first time that out-of-plane shear parameters can be determined from a macro-mechanical test for a 2.42 mm thick cold-rolled AA5754-H22 series aluminium sheet. plastic anisotropy out-of-plane shear resistance indentation test indentation plastometry YLD2004–18p yield function plastična anizotropija odpor proti strigu izven ravnine preskus z vtiskovanjem plastometrija z vtiskovanjem YLD2004-18p funkcija plastičnosti true false true Angleški jezik Slovenski jezik Članek v reviji 2023-05-09 10:31:02 2023-05-09 10:31:07 2023-09-02 03:45:44 0000-00-00 00:00:00 2023 0 0 15 str. Vol. 253, art. 108403 Sep. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.1:621.795.8 0020-7403 10.1016/j.ijmecsci.2023.108403 149875203 Satosek,_Pepelnjak,_Starman_-_Characterisation_of_out-of-plane_shear_behaviour_of_anisotropic_sheet_materials_based_on_indentation_plastometry.pdf Satosek,_Pepelnjak,_Starman_-_Characterisation_of_out-of-plane_shear_behaviour_of_anisotropic_sheet_materials_based_on_indentation_plastometry.pdf 1 4663B572861384B524E7AA3965BAF546 252489eb5b695da5e97e09d9a4c2aa3a2860a8fd5343bdf016be4660e41240ce 0cabfa29-ee44-11ed-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=168663 https://www.sciencedirect.com/science/article/pii/S0020740323003053 1 9cdd6d2e-ee43-11ed-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=168662 Fakulteta za strojništvo 0 0 0