کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1467883 990121 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of fibre orientation closure approximations on mechanical property predictions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
The effect of fibre orientation closure approximations on mechanical property predictions
چکیده انگلیسی

Current approaches used to simulate the flow of short-fibre suspensions employ fibre orientation tensors where the dependence upon higher-order orientation tensors is alleviated through the use of a closure. Unfortunately, the effect that a given closure has on material property predictions has received little attention in the literature. Accordingly this investigation demonstrates that current objective fourth-order closures assume an orthotropic form, whereas existing sixth-order closures are shown to provide a material representation with fewer symmetries than orthotropic. Numerical calculations demonstrate the existence of shear–extensional and shear–shear coupling in simple homogeneous flow and for a center-gated disk. Although these components are minor in comparison to principal components of the stiffness tensor, these components can be obtained via existing sixth-order closures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 38, Issue 3, March 2007, Pages 975–982
نویسندگان
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