4.2 Article

Effect of structural parameters on bending behaviour of honeycomb sandwich panel

期刊

EMERGING MATERIALS RESEARCH
卷 11, 期 1, 页码 105-113

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ICE PUBLISHING
DOI: 10.1680/jemmr.21.00082

关键词

aluminium; bending; composite; honeycomb; sandwich panel

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This study investigates the bending behaviors of honeycomb sandwich panels through simulated three-point bending tests. The panels used in the study consist of aluminium alloy skins and cast polyamide honeycomb core. The collapse mechanism and effects of structural parameters, such as foil thickness, core height, and cell length, are analyzed. The results show that increasing foil thickness and core height can enhance the load-carrying capacity of the sandwich panel, while increasing cell edge length leads to a decrease in the maximum load value. The analysis of variance results indicate that the core height is the most influential parameter on the bending behavior of the honeycomb panel (34%), followed by foil thickness (30.5%), with the cell edge having a lower influence (27.2%).
In this study, three-point bending tests were simulated to investigate the bending behaviours of honeycomb sandwich panels. The sandwich panels used in the study consisted of aluminium alloy skins and cast polyamide honeycomb core. The collapse mechanism and effects of the structural parameters of panels were investigated. The structural parameters of a honeycomb panel are foil thickness, height of core and length of cell. According to the finite element analysis results, as the foil thickness and core height of sandwich panel increase, the load-carrying capacity of the sandwich panel increases. As the length of cell edge increases, the maximum load value decreases. According to the analysis of variance test results, the most important parameter affecting the bending behaviour honeycomb panel is the height of the core (34%). The second factor is foil thickness (30.5%). The influence of the cell edge is lower than other parameters (27.2%).

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