Finite Element Analysis as a Method to Study Molluscan Shell Mechanics

Finite Element Analysis as a Method to Study Molluscan Shell Mechanics IntroductionMolluscs are a remarkable group of lophotrochozoans who have evolved the ability to take a single mineral − calcium carbonate − and build a morphologically complex, hierarchical shell whose strength and toughness far exceed its constituent components. Understanding the mechanics of the shell is paramount to understanding its function, which further provides insight into the animals ecology and evolutionary history as well as providing us with inspiration for man‐made materials. Measuring mechanical properties and the connection between those properties and their function and then from function to ecology requires data from numerous analytical techniques; however, some of the data required is beyond the ability of laboratory experiments to provide. An example of this comes from the external shells of cephalopods. These shells are filled with gas and have to resist hydrostatic pressure; the ability of different shell morphologies to resist increasing hydrostatic pressure would require information about the stress and strain fields within the shell. Measuring these internal stresses and strains within the shell under high hydrostatic pressure is however, unfeasible experimentally. How then can this problem be approached? The answer comes from the field of computational mechanics, specifically finite element analysis (FEA). FEA can take a digital representation http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Engineering Materials Wiley

Finite Element Analysis as a Method to Study Molluscan Shell Mechanics

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
1438-1656
eISSN
1527-2648
D.O.I.
10.1002/adem.201700939
Publisher site
See Article on Publisher Site

Abstract

IntroductionMolluscs are a remarkable group of lophotrochozoans who have evolved the ability to take a single mineral − calcium carbonate − and build a morphologically complex, hierarchical shell whose strength and toughness far exceed its constituent components. Understanding the mechanics of the shell is paramount to understanding its function, which further provides insight into the animals ecology and evolutionary history as well as providing us with inspiration for man‐made materials. Measuring mechanical properties and the connection between those properties and their function and then from function to ecology requires data from numerous analytical techniques; however, some of the data required is beyond the ability of laboratory experiments to provide. An example of this comes from the external shells of cephalopods. These shells are filled with gas and have to resist hydrostatic pressure; the ability of different shell morphologies to resist increasing hydrostatic pressure would require information about the stress and strain fields within the shell. Measuring these internal stresses and strains within the shell under high hydrostatic pressure is however, unfeasible experimentally. How then can this problem be approached? The answer comes from the field of computational mechanics, specifically finite element analysis (FEA). FEA can take a digital representation

Journal

Advanced Engineering MaterialsWiley

Published: Jan 1, 2018

Keywords: ; ; ; ; ;

References

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