Diffusion-driven stress relaxation of gels under incremental planar extensions

被引：0

作者：

De Vita, Raffaella ^{[1
]}

Nardinocchi, Paola ^{[2
]}

Teresi, Luciano ^{[3
]}

机构：

[1] Virginia Tech, Dept Biomed Engn & Mech, STRETCH Lab, Blacksburg, VA 24061 USA

[2] Sapienza Univ Roma, Dipartimento Ingn Strutturale & Geotecn, I-00184 Rome, Italy

[3] Univ Roma Tre, Dipartimento Matemat & Fis, I-00184 Rome, Italy

来源：

MECHANICS OF MATERIALS | 2019年 / 134卷

基金：

美国国家科学基金会;

关键词：

Diffusion; Stress relaxation; Planar extension; Incremental extension; Hydrogels; POLYMER GELS; STATISTICAL-MECHANICS; SOLVENT;

D O I：

10.1016/j.mechmat.2019.04.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the stress response of hydrogels to multiple and consecutive planar extensions using the standard Flory-Rehner thermodynamics. We show explicitly how the stress relaxation at a given extension depends on both the number and magnitude of incremental steps that lead to such extension. These results have the potential to impact the design of hydrogel-based actuators where a prescribed extension can be achieved through several consecutive extensions.

引用

页码：106 / 114

页数：9

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