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2020 | OriginalPaper | Chapter

Elastoplastic Analysis of Re-entrant Cell Formation in Auxetic Foams Under Compression and Heat Treatment

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Abstract

Negative Poisson’s ratio of polymeric foam can be obtained by using the thermal transformation method to convert cell shape from convex to reentrant ones. In this work, the large-deformation finite element analysis is performed to quantify the magnitudes of compression and temperature for subsequent heat treatment to reduce elastic recovery, such that the reentrant shape can be maintained when the compression is removed. The amount of compression and temperature for heat treatment that can produce NPR foam can be used as a guide for experimental investigations, instead of trial-and-error methods to determine manufacturing parameters.

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Literature
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go back to reference Wang, Y.-C.: Negative Poisson’s ratio in plane elasticity. In: Altenbach, H., Öchsner, A. (eds.) Encyclopedia of Continuum Mechanics. Springer, Heidelberg (2019) Wang, Y.-C.: Negative Poisson’s ratio in plane elasticity. In: Altenbach, H., Öchsner, A. (eds.) Encyclopedia of Continuum Mechanics. Springer, Heidelberg (2019)
Metadata
Title
Elastoplastic Analysis of Re-entrant Cell Formation in Auxetic Foams Under Compression and Heat Treatment
Authors
Yun-Che Wang
Tsai-Wen Ko
Hsiang-Wei Lai
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-47883-4_31

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