کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
279098 1430331 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inhomogeneous swelling of a gel in equilibrium with a solvent and mechanical load
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Inhomogeneous swelling of a gel in equilibrium with a solvent and mechanical load
چکیده انگلیسی

A network of polymers can imbibe a large quantity of a solvent and swell, resulting in a gel. The swelling process can be markedly influenced by a mechanical load and geometric constraint. When the network, solvent, and mechanical load equilibrate, inside the gel the chemical potential of the solvent is homogeneous, but the concentration of the solvent and the deformation of the network can be inhomogeneous. We use the chemical potential of the solvent and the deformation gradient of the network as the independent variables of the free-energy function, and show that the boundary value problem of the swollen gel is equivalent to that of a hyperelastic solid. We implement this approach in the finite-element package, ABAQUS, and analyze examples of swelling-induced deformation, contact, and bifurcation. Because commercial software like ABAQUS is widely available, this work may provide a powerful tool to study complex phenomena in gels.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 46, Issue 17, 15 August 2009, Pages 3282–3289
نویسندگان
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