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Egg-inspired engineering in the design of thin-walled shelled vessels: a theoretical approach for shell strength

Narushin, Valeriy G., Romanov, Michael N, Griffin, Darren K. (2022) Egg-inspired engineering in the design of thin-walled shelled vessels: a theoretical approach for shell strength. Frontiers in Bioengineering and Biotechnology, 14 . Article Number 995817. ISSN 2296-4185. (doi:10.3389/fbioe.2022.995817) (KAR id:96969)

Abstract

A novel subdiscipline of bionics is emerging in the form of ‘egg-inspired engineering’ through the use of egg-shaped ovoids as thin-walled tanks and building structures. Hügelschäffer’s and Narushin’s models of egg geometry are highly applicable within this proposed subdiscipline. Here we conducted a comparative analysis between the two models with respect to some of the most important egg parameters. These included contents volume, shell volume, and the location of the neutral axis along the shell thickness. As a first step, theoretical studies using the Narushin’s model were carried out due to the lack (or limited amount) of data on the geometric relationships of parameters and available calculation formulae. Considering experimental data accumulated in the engineering and construction industries, we postulate a hypothesis that there is a correlation between location of the neutral axis and the strength of the walls in the egg-shaped structure. We suggest that the use of Narushin’s model is preferable to Hügelschäffer’s model for designing thin-walled shelled vessels and egg-shaped building structures. This is due to its relative simplicity (because of the requirement for only two initial parameters in the basic equation), optimal geometry in terms of material costs per unit of internal capacity, and effective prerequisites for shell strength characteristics.

Item Type: Article
DOI/Identification number: 10.3389/fbioe.2022.995817
Uncontrolled keywords: avian egg; thin-walled shelled vessel; eggshell; neutral axis; egg shape model; Hügelschäffer’s model; Narushin’s model
Subjects: Q Science > QA Mathematics (inc Computing science)
Q Science > QA Mathematics (inc Computing science) > QA440 Geometry
Q Science > QH Natural history > QH324.2 Computational biology
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials engineering and construction
Divisions: Divisions > Division of Natural Sciences > Centre for Interdisciplinary Studies of Reproduction
Divisions > Division of Natural Sciences > Biosciences
Signature Themes: Food Systems, Natural Resources and Environment
Funders: University of Kent (https://ror.org/00xkeyj56)
Depositing User: Mike Romanov
Date Deposited: 17 Sep 2022 08:18 UTC
Last Modified: 08 Sep 2023 13:11 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/96969 (The current URI for this page, for reference purposes)

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