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Experimental investigation and simulation of 3D printed sandwich structures with novel core topologies under bending loads

  • Meltem Eryildiz EMAIL logo
Published/Copyright: February 22, 2023
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International Polymer Processing
From the journal International Polymer Processing Volume 38 Issue 3

Abstract

In a range of applications, such as the automotive, aerospace, and shipbuilding sectors, where weight reduction is essential, sandwich structures are getting more popular. The performance of sandwich structures in bending can be enhanced by using lightweight core topologies. In this study, six different novel and new core topologies were designed with CATIA V5. Polylactic acid (PLA) sandwich structures with new core designs were produced using the fused deposition modeling (FDM) additive manufacturing method. In order to determine the mechanical characteristics of these six designed core topologies, three-point bending tests on sandwich structures were performed. The influence of core topology on the flexural characteristics of lightweight sandwich structures was investigated to appropriately choose and design the core topology of the sandwich structures to meet desired structural requirements. To evaluate the flexural behavior of sandwich structures, finite element simulation using ANSYS Workbench 2021 R2 was also performed. Both the experimental data and simulation were in good agreement and clearly showed that the sandwich structure with the triple bow core exhibited the highest mechanical properties. These results provide new perspectives on the investigation of the mechanical response of sandwich structures, which can be beneficial for many other industries and applications.

Keywords: core topologies; FDM; FEA; sandwich structure; three point bending
Corresponding author: Meltem Eryildiz, Department of Mechanical Engineering, Faculty of Engineering and Architecture, Beykent University, Istanbul, Türkiye, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2022-11-14
Accepted: 2023-02-03
Published Online: 2023-02-22
Published in Print: 2023-07-26

© 2023 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Research Articles
  3. Experimental investigation and simulation of 3D printed sandwich structures with novel core topologies under bending loads
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  9. Tensile properties of sandwich-designed carbon fiber filled PLA prepared via multi-material additive layered manufacturing and post-annealing treatment
  10. Non-isothermal simulation of a corner vortex within entry flow for a viscoelastic fluid
  11. Feasibility assessment of injection molding online monitoring based on oil pressure/nozzle pressure/cavity pressure
  12. Modelling of roller conveyor for the simulation of rubber tire tread extrusion
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https://doi.org/10.1515/ipp-2022-4311
Keywords for this article
core topologies; FDM; FEA; sandwich structure; three point bending

Articles in the same Issue

  1. Frontmatter
  2. Research Articles
  3. Experimental investigation and simulation of 3D printed sandwich structures with novel core topologies under bending loads
  4. Notable electrical and mechanical properties of polyacrylamide (PAM) with graphene oxide (GO) and single-walled carbon nanotubes (SWCNTs)
  5. Study on the thermal stability and combustion performance of polyurethane foams modified with manganese phytate
  6. Improving the rheology of linear low-density polyethylene (LLDPE) and processability of blown film extrusion using a new binary processing aid
  7. Stereocomplex formation of a poly(D-lactide)/poly(L-lactide) blend on a technical scale
  8. Experimental investigation on mechanical and tribological characteristics of snake grass/sisal fiber reinforced hybrid composites
  9. Tensile properties of sandwich-designed carbon fiber filled PLA prepared via multi-material additive layered manufacturing and post-annealing treatment
  10. Non-isothermal simulation of a corner vortex within entry flow for a viscoelastic fluid
  11. Feasibility assessment of injection molding online monitoring based on oil pressure/nozzle pressure/cavity pressure
  12. Modelling of roller conveyor for the simulation of rubber tire tread extrusion
  13. Reactive compatibilization of polypropylene grafted with maleic anhydride and styrene, prepared by a mechanochemical method, for a blend system of biodegradable poly(propylene carbonate)/polypropylene spunbond nonwoven slice
  14. Effect of stacking sequence and thickness variation on the thermo-mechanical properties of flax-kenaf laminated biocomposites and prediction of the optimal configuration using a decision-making framework
  15. Design and manufacture of an additive manufacturing printer based on 3D melt electrospinning writing of polymer
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