کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1467883 | 990121 | 2007 | 8 صفحه PDF | دانلود رایگان |

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.
Journal: Composites Part A: Applied Science and Manufacturing - Volume 38, Issue 3, March 2007, Pages 975–982