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2020 | OriginalPaper | Chapter

17. Sign-Switching of Environmental Expansion Coefficients with Environmental Change Reversals

Author : Prof. Dr. Teik-Cheng Lim

Published in: Mechanics of Metamaterials with Negative Parameters

Publisher: Springer Singapore

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Abstract

This chapter considers two examples of expansion coefficient sign-switching upon environmental change reversal. For the first example, the thermal and moisture strains in one direction are persistently negative. In the first instance, it is shown that these microstructures exhibit Poisson’s ratio sign-toggling with stress direction reversal in the same manner as that discussed in Sect. 16.​1. In the second example, the in-plane thermal strain is shown to be persistently positive, based on the principle of microstructural duality.

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previous chapter Sign-Switching of Poisson’s Ratio with Stress Reversal
next chapter Sign-Switching of Poisson’s Ratio with Temperature Change Reversals
Literature
Lim TC (2019a) A composite metamaterial with sign switchable elastic and hygrothermal properties induced by stress direction and environmental change reversals. Compos Struct 220:185–193CrossRef
Lim TC (2019b) A 2D auxetikos system based on interconnected shurikens. SN Appl Sci 1(11):1383CrossRef
Lim TC (2019c) Composite microstructures with Poisson’s ratio sign switching upon stress reversal. Compos Struct 209:34–44
Lim TC (2019d) Metamaterials with Poisson’s ratio sign toggling by means of microstructural duality. SN Appl Sci 1(2):176
Lim TC (2019e) A class of shape-shifting composite metamaterial honeycomb structures with thermally-adaptive Poisson’s ratio signs. Compos Struct 226:111256
Lim TC (2019f) 2D metamaterial with in-plane positive and negative thermal expansion and thermal shearing based on interconnected alternating bimaterials. Mater Res Express 6(11):115804
Metadata
Title
Sign-Switching of Environmental Expansion Coefficients with Environmental Change Reversals
Author
Prof. Dr. Teik-Cheng Lim
Copyright Year
2020
Publisher
Springer Singapore
Book
Mechanics of Metamaterials with Negative Parameters

Print ISBN: 978-981-15-6445-1

Electronic ISBN: 978-981-15-6446-8

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-981-15-6446-8_17

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