Linear and nonlinear poroelastic analysis of swelling and drying behavior of gelatin-based hydrogels

Chen Si; Huang Rui; Ravi-Chandar Krishnaswamy

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Linear and nonlinear poroelastic analysis of swelling and drying behavior of gelatin-based hydrogels

机译：明胶基水凝胶肿胀和干燥行为的线性和非线性腹腔弹性分析

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The swelling and drying behavior of a gelatin-glycerol-water hydrogel are examined experimentally for different compositions and different environmental conditions. Significant asymmetry in the swelling and drying kinetics is observed from these measurements. The early time measurements are interpreted first within the context of a linear poroelastic theory, but a fully nonlinear Flory-Rehner theory is required in order to capture the long time behavior. Comparison of the experimental measurements with simulations based on both the linear and nonlinear constitutive models yields a consistent calibration of the material parameters of the models. (C) 2020 Elsevier Ltd. All rights reserved.

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《International Journal of Solids and Structures》 |2020年第2020期|共14页
作者
Chen Si; Huang Rui; Ravi-Chandar Krishnaswamy;
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作者单位

Univ Texas Austin Dept Aerosp Engn &

Engn Mech Ctr Mech Solids Struct &

Mat Austin TX 78712 USA;

Univ Texas Austin Dept Aerosp Engn &

Engn Mech Ctr Mech Solids Struct &

Mat Austin TX 78712 USA;

Univ Texas Austin Dept Aerosp Engn &

Engn Mech Ctr Mech Solids Struct &

Mat Austin TX 78712 USA;

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正文语种 eng
中图分类固体力学;
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Linear and nonlinear poroelastic analysis of swelling and drying behavior of gelatin-based hydrogels

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