期刊
COMPOSITES PART B-ENGINEERING
卷 242, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2022.110089
关键词
A. fabrics/textiles; D. Mechanical testing; E. Preform; E. Forming
资金
- Agence Nationale de la Recherche [ANR-18-CE06-0011-04]
- China Scholarship Council (CSC)
The drapability of a textile composite reinforcement refers to its ability to be formed on a double curved shape without wrinkling. By analyzing the deformation modes and internal virtual works during draping, a physics-based Drapability Ratio can be determined, which is influenced by the in-plane shear stiffness and bending stiffness of the textile reinforcement. This ratio helps identify the suitable reinforcement for a given geometry.
The drapability of a textile composite reinforcement is its capability to be formed on a double curved shape without wrinkling. This is an important property of a textile reinforcement when it is used to manufacture a preform in liquid composite molding processes. The analysis of the deformation modes and the form of the internal virtual works during draping of a fibrous reinforcement leads to define a physics-based Drapability Ratio determined by the in-plane shear stiffness and the bending stiffness of the textile reinforcement. This Drapability Ratio can be used to identify the reinforcement that can be draped for a given geometry. Square box forming and cylindrical forming carried out for a set of textile reinforcements under the same conditions show the relevance of this Drapability Ratio.
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