کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9703054 | 1463253 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved affine estimates for nonlinear viscoelastic composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Motivated by recent results obtained in the context of variational approaches, new estimates are proposed for the homogenised behaviour of nonlinear viscoelastic materials. The key point relies in the introduction of field fluctuations in the context of hereditary behaviours. This is accomplished by incorporating the intraphase second moment of the mechanical fields of a reference linear viscoelastic material in an hereditary linearisation procedure. Analytical results for the evolution of field fluctuations within a linear viscoelastic composite are derived. Some illustrative results are presented for the creep response of a nonlinear viscoelastic matrix containing elastic inclusions with different morphologies. Compared with a classical approach, the proposed procedure leads to a softer overall response for both transient and steady-state regimes, and predicts a faster stress field redistribution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Mechanics - A/Solids - Volume 24, Issue 6, NovemberâDecember 2005, Pages 1002-1015
Journal: European Journal of Mechanics - A/Solids - Volume 24, Issue 6, NovemberâDecember 2005, Pages 1002-1015
نویسندگان
R. Brenner, R. Masson,