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Bioinspired Honeycomb Core Design: An Experimental Study of the Role of Corner Radius, Coping and Interface

The honeybee’s comb has inspired the design of engineering honeycomb core that primarily abstract the hexagonal cell shape and exploit its mass minimizing properties to construct lightweight panels. This work explored three additional design features that are part of natural honeybee comb but have n...

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Autores principales: Goss, Derek, Mistry, Yash, Niverty, Sridhar, Noe, Cameron, Santhanam, Bharath, Ozturk, Cahit, Penick, Clint A., Lee, Christine, Chawla, Nikhilesh, Grishin, Alex, Shyam, Vikram, Bhate, Dhruv
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7709708/
https://www.ncbi.nlm.nih.gov/pubmed/33158131
http://dx.doi.org/10.3390/biomimetics5040059
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author Goss, Derek
Mistry, Yash
Niverty, Sridhar
Noe, Cameron
Santhanam, Bharath
Ozturk, Cahit
Penick, Clint A.
Lee, Christine
Chawla, Nikhilesh
Grishin, Alex
Shyam, Vikram
Bhate, Dhruv
author_facet Goss, Derek
Mistry, Yash
Niverty, Sridhar
Noe, Cameron
Santhanam, Bharath
Ozturk, Cahit
Penick, Clint A.
Lee, Christine
Chawla, Nikhilesh
Grishin, Alex
Shyam, Vikram
Bhate, Dhruv
author_sort Goss, Derek
collection PubMed
description The honeybee’s comb has inspired the design of engineering honeycomb core that primarily abstract the hexagonal cell shape and exploit its mass minimizing properties to construct lightweight panels. This work explored three additional design features that are part of natural honeybee comb but have not been as well studied as design features of interest in honeycomb design: the radius at the corner of each cell, the coping at the top of the cell walls, and the interface between cell arrays. These features were first characterized in natural honeycomb using optical and X-ray techniques and then incorporated into honeycomb core design and fabricated using an additive manufacturing process. The honeycomb cores were then tested in out-of-plane compression and bending, and since all three design features added mass to the overall structure, all metrics of interest were examined per unit mass to assess performance gains despite these additions. The study concluded that the presence of an interface increases specific flexural modulus in bending, with no significant benefit in out-of-plane compression; coping radius positively impacts specific flexural strength, however, the corner radius has no significant effect in bending and actually is slightly detrimental for out-of-plane compression testing.
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spelling pubmed-77097082020-12-03 Bioinspired Honeycomb Core Design: An Experimental Study of the Role of Corner Radius, Coping and Interface Goss, Derek Mistry, Yash Niverty, Sridhar Noe, Cameron Santhanam, Bharath Ozturk, Cahit Penick, Clint A. Lee, Christine Chawla, Nikhilesh Grishin, Alex Shyam, Vikram Bhate, Dhruv Biomimetics (Basel) Article The honeybee’s comb has inspired the design of engineering honeycomb core that primarily abstract the hexagonal cell shape and exploit its mass minimizing properties to construct lightweight panels. This work explored three additional design features that are part of natural honeybee comb but have not been as well studied as design features of interest in honeycomb design: the radius at the corner of each cell, the coping at the top of the cell walls, and the interface between cell arrays. These features were first characterized in natural honeycomb using optical and X-ray techniques and then incorporated into honeycomb core design and fabricated using an additive manufacturing process. The honeycomb cores were then tested in out-of-plane compression and bending, and since all three design features added mass to the overall structure, all metrics of interest were examined per unit mass to assess performance gains despite these additions. The study concluded that the presence of an interface increases specific flexural modulus in bending, with no significant benefit in out-of-plane compression; coping radius positively impacts specific flexural strength, however, the corner radius has no significant effect in bending and actually is slightly detrimental for out-of-plane compression testing. MDPI 2020-11-04 /pmc/articles/PMC7709708/ /pubmed/33158131 http://dx.doi.org/10.3390/biomimetics5040059 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Goss, Derek
Mistry, Yash
Niverty, Sridhar
Noe, Cameron
Santhanam, Bharath
Ozturk, Cahit
Penick, Clint A.
Lee, Christine
Chawla, Nikhilesh
Grishin, Alex
Shyam, Vikram
Bhate, Dhruv
Bioinspired Honeycomb Core Design: An Experimental Study of the Role of Corner Radius, Coping and Interface
title Bioinspired Honeycomb Core Design: An Experimental Study of the Role of Corner Radius, Coping and Interface
title_full Bioinspired Honeycomb Core Design: An Experimental Study of the Role of Corner Radius, Coping and Interface
title_fullStr Bioinspired Honeycomb Core Design: An Experimental Study of the Role of Corner Radius, Coping and Interface
title_full_unstemmed Bioinspired Honeycomb Core Design: An Experimental Study of the Role of Corner Radius, Coping and Interface
title_short Bioinspired Honeycomb Core Design: An Experimental Study of the Role of Corner Radius, Coping and Interface
title_sort bioinspired honeycomb core design: an experimental study of the role of corner radius, coping and interface
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7709708/
https://www.ncbi.nlm.nih.gov/pubmed/33158131
http://dx.doi.org/10.3390/biomimetics5040059
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