Abstract
This paper presents some of the recent research work taking place in the development of complex shape preforms using weft-knitting and braiding technologies for technical applications, especially for composite materials reinforcement. A FEA model has been used for the prediction of the deformation behaviour and related mechanical properties of weft knitted fabrics and corresponding composite material. A plain weft knitted fabric, based on the simple loop structure, is simplified and represented by a 2D hexagonal structure constructed by the non-linear truss elements. The characteristics of the truss elements for FEA simulation are obtained from experimental results through an analytical method when a loop is converted to a FEA model. The elongation deformation is simulated in one, two and multi directions. The model can also be used to calculate a plain weft-knitted fabric to be deformed to fit a 3D mould with a spherical form.
| Original language | English |
|---|---|
| Pages (from-to) | 787-791 |
| Number of pages | 5 |
| Journal | Materials Science Forum |
| Volume | 455-456 |
| DOIs | |
| Publication status | Published - 2004 |
| Externally published | Yes |
| Event | Advanced Materials Forum II: Proceedings of the II International Materials Symposium: Materials 2003 and XI Encontro da Sociedade Portugesa de Materials, 2003 ATERIAIS - Caparica, Portugal Duration: 14 Apr 2003 → 16 Apr 2003 |
Keywords
- Fibrous materials
- Finite elements
- Preforms
- Textile reinforced composites
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering