Influence of the stitching density on the transverse permeability of non-crimped new concept (NC2) multiaxial reinforcements: measurements and predictions

被引:45
作者
Drapier, S [1 ]
Pagot, A
Vautrin, A
Henrat, P
机构
[1] Ecole Natl Super Mines, SMS Div, Dept Mech & Mat Engn, F-42023 St Etienne 02, France
[2] Hexcel Fabr, ZI Nappes, F-38630 Les Avenieres, France
关键词
multiaxial reinforcements;
D O I
10.1016/S0266-3538(02)00127-6
中图分类号
TB33 [复合材料];
学科分类号
摘要
New manufacturing processes arise for polymer-based composites which involve resin infusion through dry pre-forms. Modelling approaches of these processes require to assess new physical characteristics of the materials. In this paper, the transverse permeability of new multiaxial stitched materials, referred to as NC2, is investigated. First, in the framework of Darcy's flows, this permeability is assessed for various biaxial NC2 using a specific device. Through this approach it is shown that the transverse permeability depends strongly on the stitching density. Then, the results from a simplified FE study carried out at the blanket scale are shown to correlate quite well the experimental measurements and evidences established in the first part. (C) 2002 Published by Elsevier Science Ltd.
引用
收藏
页码:1979 / 1991
页数:13
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