Reduced models of swelling-induced bending of gel bars

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:49

Article

Lucantonio, A.¹  Nardinocchi, P.¹ 

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

关键词: Bending curvature;    Swelling;    Gel;    Poroelasticity;    Diffusion;   

DOI  :  10.1016/j.ijsolstr.2012.02.025

来源: Elsevier

【 摘 要 】

The purpose of the paper is to present a class of reduced models borrowed from structural mechanics aimed at specifically describing swelling-induced bending deformations in a gel bar. A distinct bending pattern to be confirmed by an appropriate experimental setup is evidenced through the analysis of a plane stress-diffusion model. Moreover, a further reduced 1D stress-diffusion model driven by an integro-differential equation is derived. In particular, it is shown that there exists a range of the material parameters where the standard 10 diffusion equation holds. (C) 2012 Elsevier Ltd. All rights reserved.

【 授权许可】

Free