Eksperymentalna i numeryczna analiza ściskania rur aluminiowych
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CA_MG_SJ_sc_rur_v3.pdf (418.06 KB)
Date
2008
Journal Title
Journal ISSN
Volume Title
Publisher
University of Žilina
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Abstract
The paper presents a comparison of numerical and experimental results of aluminum pipes compressing. In such tests depending on dimensions proportions there is possibility to obtain two type instabilities – local pipe wall buckling or global pipe buckling. Experimental test were carried out for pipes with heights from 80 to 200 [mm]. In numerical analysis a Simo constitu-tive model for large deformation plasticity was adopted. Such formulation of boundary value problem allows to obtain buckling without any geometrical imperfections.