کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5187953 1381141 2005 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A phenomenological energy-based model to characterize stress-softening effect in elastomers
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
A phenomenological energy-based model to characterize stress-softening effect in elastomers
چکیده انگلیسی

A phenomenological energy-based model for stress-softening of isotropic, incompressible hyperelastic rubberlike materials is derived here. In this model, the microstructural damage is characterized by an exponential softening function that depends on the current magnitude of the strain-energy function and its maximum previous value in a deformation of the virgin material. Theoretical models are presented for uniaxial, equibiaxial and pure shear deformations by using Gaussian and non-Gaussian material molecular network models. The accuracy of the resulting constitutive equations is demonstrated on uniaxial, equibiaxial and pure shear experimental data provided in the literature. Comparisons between the energy-based model and the strain intensity based phenomenological model described in [Elías-Zúñiga A, Beatty MF. ZAMP 2002;53:794-814. [1]] show that the model developed here is slightly superior in following experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 10, 25 April 2005, Pages 3496-3506
نویسندگان
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