A Review of Sandwich Composite Structures with 3D Printed Honeycomb Cores
Keywords:sandwich beam, honeycomb core, lightweight structure, bending stiffness, fatigue
Sandwich structures have picked up ubiquity in engineering applications due to its lightweight nature, high bending stiffness, high fatigue resistance and ability to absorb energy. It is difficult to retain the lightweight execution of a sandwich construction whereas moreover getting great bending stiffness and strength. The mechanical characteristics of Acrylonitrile Butadiene Styrene (ABS) and Polylactic Acid (PLA) produced via additive manufacturing are investigated in this article. The most often used materials for cores are ABS and PLA. ABS appears to have more flexural strength and elongation before failure than PLA. The behaviour of cores is also examined. The bending stiffness was discovered to be enhanced by the re-entrant core which is the core that exhibits negative Poisson’s ratio or auxetic behaviour. The bending and fatigue performance of sandwich structures is controlled by the core densities, core designs, component materials, face sheet thickness, and face sheet stacking sequence. Furthermore, the findings revealed that finite element analysis may be utilized to investigate the mechanical characteristics of sandwich constructions with honeycomb cores. The discoveries presented here open the path for the development of a new class of sandwich structures, greatly expanding their design space and potential future applications.
Authors who publish with Engineering Journal agree to transfer all copyright rights in and to the above work to the Engineering Journal (EJ)'s Editorial Board so that EJ's Editorial Board shall have the right to publish the work for nonprofit use in any media or form. In return, authors retain: (1) all proprietary rights other than copyright; (2) re-use of all or part of the above paper in their other work; (3) right to reproduce or authorize others to reproduce the above paper for authors' personal use or for company use if the source and EJ's copyright notice is indicated, and if the reproduction is not made for the purpose of sale.