Training and re-training liquid crystal elastomer metamaterials for pluripotent functionality

Fuente: arXiv
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Autores principales: Gowen, Savannah D., Ghimire, Elina, Lindberg, Charlie A., Appen, Ingrid S., Rowan, Stuart J., Nagel, Sidney R.
Formato: Preprint
Publicado: 2025
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author Gowen, Savannah D.
Ghimire, Elina
Lindberg, Charlie A.
Appen, Ingrid S.
Rowan, Stuart J.
Nagel, Sidney R.
author_facet Gowen, Savannah D.
Ghimire, Elina
Lindberg, Charlie A.
Appen, Ingrid S.
Rowan, Stuart J.
Nagel, Sidney R.
contents Training has emerged as a promising materials design technique in which function can be acheived through repeated physical modification of an existing material rather than by direct chemical functionalization, cutting or reprocessing. This work investigates both the ability to train for function and then to erase that function on-demand in macroscopic metamaterials made from liquid crystal elastomers (LCEs). We first show that the Poisson's ratio of these disordered arrays can be tuned via directed aging to induce an auxetic response. We then show that the arrays can be reset and re-trained for another local mechanical function, allostery, thus demonstrating pluripotent functionality.
format Preprint
id arxiv_https___arxiv_org_abs_2502_17238
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Training and re-training liquid crystal elastomer metamaterials for pluripotent functionality
Gowen, Savannah D.
Ghimire, Elina
Lindberg, Charlie A.
Appen, Ingrid S.
Rowan, Stuart J.
Nagel, Sidney R.
Materials Science
Disordered Systems and Neural Networks
Soft Condensed Matter
Training has emerged as a promising materials design technique in which function can be acheived through repeated physical modification of an existing material rather than by direct chemical functionalization, cutting or reprocessing. This work investigates both the ability to train for function and then to erase that function on-demand in macroscopic metamaterials made from liquid crystal elastomers (LCEs). We first show that the Poisson's ratio of these disordered arrays can be tuned via directed aging to induce an auxetic response. We then show that the arrays can be reset and re-trained for another local mechanical function, allostery, thus demonstrating pluripotent functionality.
title Training and re-training liquid crystal elastomer metamaterials for pluripotent functionality
topic Materials Science
Disordered Systems and Neural Networks
Soft Condensed Matter
url https://arxiv.org/abs/2502.17238