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

Yun Che Wang, Tsai Wen Ko, Hsiang Wei Lai

Research output: Chapter in Book/Report/Conference proceedingChapter

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.

Original languageEnglish
Title of host publicationStructural Integrity
PublisherSpringer
Pages168-169
Number of pages2
DOIs
Publication statusPublished - 2020

Publication series

NameStructural Integrity
Volume16
ISSN (Print)2522-560X
ISSN (Electronic)2522-5618

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials

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