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Published in:
2015 | OriginalPaper | Chapter
2. Micromechanical Models for Auxetic Materials
Author : Teik-Cheng Lim
Published in: Auxetic Materials and Structures
Publisher: Springer Singapore
Abstract
This chapter provides a survey of micromechanical models that seek to predict and explain auxetic behavior, based on re-entrant microstructures, nodule-fibril microstructure, 3D tethered-nodule model, rotating squares, rectangles, triangles and tetrahedrals models, hard cyclic hexamers
model, missing rib models, chiral and anti-chiral models, interlocking hexagon model, and the “egg rack” model. All the micromechanical models exhibit a common trait—auxeticity is highly dependent on the microstructural geometry. In some of the micromechanical geometries, comparisons between analytical results have been made with experimental or computational results.
