Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core

Mocian, Oana Alexandra; Constantinescu, Dan Mihai; Baciu, Florin; Indres, Andrei

Oana Alexandra Mocian, Dan Mihai Constantinescu, Florin Baciu, Andrei Indres

Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core

Abstract:
Architectured structures, particularly auxetic materials, have demonstrated encouraging applications in energy absorption as they facilitate the customization of their structural response. Specific geometries of unit cells can thus be tailored for particular needs due to recent progress in additive manufacturing techniques. This paper experimentally studies how the grading of the cell unit angle of an auxetic core in a sandwich panel affects its energy absorbing capability and structural response. 3D printed sandwich panels with uniform and graded auxetic cellular core were tested under quasistatic compression. The results show that sandwich panels with graded core exhibit much better energy absorption capabilities with higher plateau stress and densification strain. This indicates that, by appropriately controlling its geometry, auxetic structures can show further potential as core in sandwich panels for energy absorption applications.

Keywords:
lightweight; sandwich panel; auxetic cellular structure; graded unit cell; 3D printing

Issue: 2021 Volume 58, Issue 4

Pages: 94-101

Publication date: 2022/1/4

https://doi.org/10.37358/MP.21.4.5535

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
MOCIAN, O.A., CONSTANTINESCU, D.M., BACIU, F., INDRES, A., Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core, Mater. Plast., 58(4), 2021, 94-101. https://doi.org/10.37358/MP.21.4.5535

Vancouver
Mocian OA, Constantinescu DM, Baciu F, Indres A. Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core. Mater. Plast.[internet]. 2021 Dec;58(4):94-101. Available from: https://doi.org/10.37358/MP.21.4.5535

APA 6th edition
Mocian, O.A., Constantinescu, D.M., Baciu, F. & Indres, A. (2021). Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core. Materiale Plastice, 58(4), 94-101. https://doi.org/10.37358/MP.21.4.5535

Harvard
Mocian, O.A., Constantinescu, D.M., Baciu, F., Indres, A. (2021). 'Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core', Materiale Plastice, 58(4), pp. 94-101. https://doi.org/10.37358/MP.21.4.5535

IEEE
O.A. Mocian, D.M. Constantinescu, F. Baciu, A. Indres, "Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core". Materiale Plastice, vol. 58, no. 4, pp. 94-101, 2021. [online]. https://doi.org/10.37358/MP.21.4.5535

Text
Oana Alexandra Mocian, Dan Mihai Constantinescu, Florin Baciu, Andrei Indres,
Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core,
Materiale Plastice,
Volume 58, Issue 4,
2021,
Pages 94-101,
ISSN 2668-8220,
https://doi.org/10.37358/MP.21.4.5535.
(https://revmaterialeplastice.ro/Articles.asp?ID=5535)
Keywords: lightweight; sandwich panel; auxetic cellular structure; graded unit cell; 3D printing

RIS
TY - JOUR
T1 - Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core
A1 - Mocian, Oana Alexandra
A2 - Constantinescu, Dan Mihai
A3 - Baciu, Florin
A4 - Indres, Andrei
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2021
VL - 58
IS - 4
SP - 94
EP - 101
UR - https://doi.org/10.37358/MP.21.4.5535
KW - lightweight
KW - sandwich panel
KW - auxetic cellular structure
KW - graded unit cell
KW - 3D printing
ER -

BibTex
@article{MatPlast2021P94,
author = {Mocian Oana Alexandra and Constantinescu Dan Mihai and Baciu Florin and Indres Andrei},
title = {Energy Absorption Enhancement by Unit Cell Angle Grading or Sandwich Panels with Auxetic Core},
journal = {Materiale Plastice},
volume = {58},
number = {4},
pages = {94-101},
year = {2021},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.21.4.5535},
url = {https://revmaterialeplastice.ro/Articles.asp?ID=5535}
}

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