کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
793654 1467127 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear elasticity modeling of biogels
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Nonlinear elasticity modeling of biogels
چکیده انگلیسی

A second-order nonlinear elastic model is developed for biogels, whereby the elastic constants are estimated from the free energy densities for polymer networks and polymer–water mixtures. For typical values of the constants, important physical insights are revealed: a biogel stiffens under tension, contracts longitudinally under torsion (inverse Poynting effect), and experiences a negative normal stress under simple shear. This approach of extracting nonlinear elastic constants works for any constitutive law, and has the advantage of exploring physical phenomena without recourse to computationally intensive simulations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanics and Physics of Solids - Volume 58, Issue 3, March 2010, Pages 300–310
نویسندگان
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