کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
511270 865831 2008 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Finite element simulation of polymer behaviour using a three-dimensional, finite deformation constitutive model
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Finite element simulation of polymer behaviour using a three-dimensional, finite deformation constitutive model
چکیده انگلیسی

This paper presents a phenomenological three-dimensional viscoelastic–plastic constitutive model for polymers. The model is based on the assumption that stress can be decomposed into two parts, namely viscoelastic and elastic–plastic. The proposed rate-dependent nonlinear model is then implemented in a finite element program. The validity of the code is assessed by the data from experiments on a specific polymer. The data from three types of tests, namely uniaxial compression, creep, and relaxation, are used to evaluate the validity of the model. Comparisons show that the proposed constitutive model could satisfactorily represent the time-dependent mechanical behaviour of polymers. The model is then used to study the effect of friction in the compression test and the behaviour of polymers under cyclic loading.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 86, Issues 15–16, August 2008, Pages 1643–1655
نویسندگان
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