Bending analysis of aluminium composite panel with core from thin-walled honeycombsKarimi, Ako (Avtor) Pepelnjak, Tomaž (Mentor) Aluminium sandwich panel Honeycomb core Ultimate strength Bending Test SpringbackThe aim of the present study is to investigate the strength characteristics of three typologies of aluminium honeycomb sandwich structures with different cell size theoretically and experimentally. A series of strength tests are carried out on aluminium honeycomb-cored sandwich panel specimen in three-point bending. In this study, three types of honeycomb aluminium sandwich panels with different cell sizes were modelled by using Abaqus finite element software and placed under a 3-point bending process. The main process variables included the maximum force derived from the force-displacement curve and the maximum springback angle that were compared in samples with a diameter of the honeycomb core cells of 3, 4 and 6 mm. Also, in order to increase the accuracy of modelling and extending the scope of the research, the laboratory sample, was placed under the 3-point bending process and the results of the test were compared with the finite element model. By comparing the outputs obtained from different samples, the optimum condition for each variable was determined and the effect of cell size on the ultimate strength of the sandwich panel was evaluated.20172017-12-24 07:15:27Magistrsko delo/naloga99142sl