Additive manufacturing technologies for the regional bio economy cluster – AMBIO
Abstract
Owing to their enormous potential for weight savings in a variety of applications, ultralight sandwich structures—which combine stiffening parts with a low-density core—have attracted a lot of research interest. With an emphasis on improving strength, stiffness, and weight reduction, this study identifies crucial design considerations and validates the structural integrity of the bio-based sandwich panels by methodically examining parameters like face thickness, core height, panel width, and cell size. These methods are combined with theoretical models integrating honeycomb mechanics and classical beam theory. The beam's stiffness and strength are increased by increasing the panel's width, adding a layer of printing core, and thickening the face material. As the size of the hexagonal cells within the honeycomb core varied, the sandwich panels' strength and stiffness stayed relatively constant. Additionally, a study was done on sandwich panels to evaluate their ultimate load capacity and bending stiffness. The utilization of ABAQUS/EXPLICIT for analysis provided valuable insights into performance optimization, with implications for the furniture application.
Methods and Materials
Results
Conclusions
The integration of experimental testing and Finite Element Analysis (FEA) provided a comprehensive understanding of the mechanical properties of honeycomb sandwich panels. These evaluations facilitated the development of a uniquely designed chair, which surpasses traditional plywood counterparts in both weight reduction and stiffness.
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