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A Study on the Modeling and Simulation of Bio-inspired Hedgehog Spines Structures for More Efficient Use Digital Manufacturing Processes

R. O’Sullivan, Andrew Rees, Christian Griffiths, J. Wadlinger

Sustainable Design and Manufacturing 2019, Volume: 155, Pages: 375 - 385

Swansea University Authors: Andrew Rees, Christian Griffiths

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DOI (Published version): 10.1007/978-981-13-9271-9_31

Abstract

Direct digital manufacture and additive manufacture have allowed designers the ability to design components without the design limitations witnessed in subtractive manufacturing process routes. In particular, designers can now design parts that fully utilize material usage resulting in a more sustai...

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Published in: Sustainable Design and Manufacturing 2019
ISBN: 9789811392702 9789811392719
ISSN: 2190-3018 2190-3026
Published: Singapore Springer Singapore 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa51490
Abstract: Direct digital manufacture and additive manufacture have allowed designers the ability to design components without the design limitations witnessed in subtractive manufacturing process routes. In particular, designers can now design parts that fully utilize material usage resulting in a more sustainable and environmentally friendly application of manufacturing technology. Within this context, designing and manufacturing bio-inspired components have the potential to increase both component functionality and optimize material usage. One such area of biomimicry with advantageous strength-to-weight ratio can be found in hedgehog spines. Within this study, hedgehog spines were redesigned to facilitate production through additive manufacture. In addition, with the use of finite element analysis to quantify the resulting compressive characteristics, the optimal internal geometry and septa spacing were determined. Also, a design of experiments study was conducted to determine which design features have the greatest influence on the resulting stress in the spine. The analysis concluded that the combination of longitudinal stiffeners and equally spaced septa give the spine its superior compressive strength.
Keywords: Biomimicry, Hedgehog spines, Additive manufacture, Digital manufacturing
College: Faculty of Science and Engineering
Start Page: 375
End Page: 385

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