کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7889554 | 1509864 | 2018 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Permeability and capillary effects in a channel-wise non-crimp fabric
ترجمه فارسی عنوان
نفوذ پذیری و اثرات مویرگی در یک پارچه بدون غلطک کانال
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Flow properties are investigated for a non-crimp glass fabric with large meso-channels designed for high-permeability, as compared to glass twill woven fabric. Saturated and unsaturated permeability are measured through in-plane, unidirectional, constant-pressure flow experiments. Capillary effects are evaluated following a novel approach based on the ratio of unsaturated and saturated permeability for a set of experiments conducted at capillary numbers varying over a large range from â¼4·10-5 to 4·10-1. The mesoscopic pore-space of the compacted fabrics is imaged with X-ray Tomography, and analyzed to propose permeability predictions based on the channels geometry, which correspond well to experimental results. Permeability is governed by viscous flow in the meso-channels. As a result, provided that the capillary number exceeds a threshold value, the permeability can be rather accurately measured in these dual-scale fabrics by carrying out unsaturated measurements, neglecting micro-flow and capillary effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 108, May 2018, Pages 41-52
Journal: Composites Part A: Applied Science and Manufacturing - Volume 108, May 2018, Pages 41-52
نویسندگان
Damiano Salvatori, Baris Caglar, Helena Teixidó, Véronique Michaud,