Uniaxial compression constitutive equations for saturated hydrogel combined water-expelled behavior with environmental factors and the size effect

被引：6

作者：

Zhang, Yuting ^{[1
]}

Zhang, Yongrou ^{[2
,3
]}

Tang, Liqun ^{[1
,4
]}

Liu, Zejia ^{[1
]}

Jiang, Zhenyu ^{[1
]}

Liu, Yiping ^{[1
]}

Zhou, Licheng ^{[1
]}

Zhou, Xuefeng ^{[2
,3
]}

机构：

[1] South China Univ Technol, Sch Civil Engn & Transportat, 381 Wushan Rd, Guangzhou, Guangdong, Peoples R China

[2] Guangdong Acad Sci, Guangdong Key Lab Modern Control Technol, Guangzhou, Guangdong, Peoples R China

[3] Guangdong Acad Sci, Inst Intelligent Mfg, Guangzhou, Guangdong, Peoples R China

[4] South China Univ Technol, State Key Lab Subtrop Bldg Sci, Guangzhou, Guangdong, Peoples R China

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2022年 / 29卷 / 28期

基金：

中国国家自然科学基金;

关键词：

Saturated hydrogel; Constitutive equations; Water-expelled behavior; Volume changes; Solution environment; Size effect; FLUID PERMEATION; DIFFUSION; GELS; MODEL; DEFORMATION; TISSUES; STRESS; VOLUME;

D O I：

10.1080/15376494.2021.2000682

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For soft materials with high water content under compression loading, their water-expelled behavior leads to volume changes and should be considered in constitutive equations. In this study, uniaxial compression experiments are conducted for saturated hydrogels of different sizes in different environments. Furthermore, the constitutive equations of uniaxial compression combined water-expelled behavior considering environmental factors and the size effect were derived, which may describe the experimental results well and reveal the mechanism of the difference in mechanical behavior of hydrogels in different environments and different sizes. Our work has important reference value for characterizing the mechanical behavior of biological soft matter.

引用

页码：7491 / 7502

页数：12

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