This article addresses the finite-element (FE) analysis of a local fibre placement in a stitched fibrous mat. The term “structural” presumes here that the stitching yarn is relatively thick (contrary to a non-structural NCF kniting) and its fibre stiffness is much higher than the matrix stiffness (pure matrix filling so called “openings” — resin-rich zones — around the stitching sites). Simplest 2D FE models are developed; typical carbon-fibre mat, carbon yarn, and epoxy resin properties are used in calculation examples. The results show important influence of the local fibre distribution (caused by the yarn cross-sectional shape, in-plane opening shape, fibre re-orientation around openings, etc.) on the stress-strain fields and homogenized stiffness.
|Number of pages||8|
|Publication status||Published - 2007|
|Event||Micro-symposium "Finite Element Modeling of Textiles and Textile Composites" - Saint-Petersburg, Russia|
Duration: 26 Sep 2007 → 28 Sep 2007
|Conference||Micro-symposium "Finite Element Modeling of Textiles and Textile Composites"|
|Period||26/09/07 → 28/09/07|
|Other||26-28 September 2007|