Compression Properties of 3d Printed Honeycomb and Re-Entrant Sandwich Core Materials

6 Pages Posted: 27 Jul 2020

See all articles by Kutay Cava

Kutay Cava

Karadeniz Technical University

Mustafa Aslan

Karadeniz Technical University

Ümit Alver

Karadeniz Technical University

Hasan Gedikli

Karadeniz Technical University

Kalusuraman G

Deemed to be University Krishnankoil, Kalasalingam Academy of Research and Education, School of Environmental and Construction Technology, Department of Civil Engineering, Students

Date Written: December 20, 2019

Abstract

In the presented paper, honeycomb (cellular) and re-entrant (auxetic) structures were produced with different thermoplastic filaments on FDM type 3D printer and their compression properties were tested. Samples were prepared from PP, ABS, PLA and PA thermoplastic polymers. The samples were subjected to quasi-static compression in edgewise and flatwise direction and their stress-strain relationships were established. For a proper strain evaluation, digital-image correlation was applied to measure full-field displacements on the sample surfaces and their and their compressive-deformation behaviour in both elastic and plastic regime up to the densification were evaluated. It was shown through compression tests in flatwise and edgewise directions re-entrant type of auxetic cores components exhibit higher compression failure stresses compared to those of cellular honeycomb core components. The stress strain curves of the re-entrant core failure show a higher energy absorbance of the honeycomb cores for the same polymer types

Keywords: 3D printing, Honeycomb, Re-entrant, Core Materials, Thermoplastic filaments

JEL Classification: Y1,Y2

Suggested Citation

Cava, Kutay and Aslan, Mustafa and Alver, Ümit and Gedikli, Hasan and G, Kalusuraman, Compression Properties of 3d Printed Honeycomb and Re-Entrant Sandwich Core Materials (December 20, 2019). Available at SSRN: https://ssrn.com/abstract=3654074 or http://dx.doi.org/10.2139/ssrn.3654074

Kutay Cava

Karadeniz Technical University ( email )

Trabzon
Turkey

Mustafa Aslan

Karadeniz Technical University ( email )

Karadeniz Technical University,
Department of Metalurgical and Materials Eng.
Trabzon, 61080
Turkey

Ümit Alver

Karadeniz Technical University ( email )

Trabzon
Turkey

Hasan Gedikli

Karadeniz Technical University ( email )

Trabzon
Turkey

Kalusuraman G (Contact Author)

Deemed to be University Krishnankoil, Kalasalingam Academy of Research and Education, School of Environmental and Construction Technology, Department of Civil Engineering, Students ( email )

India

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