Numerical Studies about the Multi-Layered Textile Composite Reinforcement Forming

Research Article

Adv Res Text Eng. 2016; 1(2): 1009.

Numerical Studies about the Multi-Layered Textile Composite Reinforcement Forming

Wang P¹*, Hamila N² and Boisse P²

¹University of Lille, ENSAIT, GEMTEX Laboratory, France

²University of Lyon, INSA-Lyon, LaMCos Laboratory, France

*Corresponding author: Peng Wang, University of Lille, ENSAIT, GEMTEX Laboratory, France

Received: September 25, 2016; Accepted: December 06, 2016; Published: December 16, 2016


In order to optimize the textile composite reinforcement forming processes, the numerical analyses are indispensable. Numerical simulations of multilayered composite forming allow the prediction for a successful process to produce the thick composite parts, in particular the position of the fibres after forming can be known. This paper details a set of simulation examples carried out by using a semi-discrete shell finite element made up of unit woven cells. The preliminary simulation results are shown in the paper. These results can not only improve the understanding of the formability of multi-layered textile reinforcements but also point out the importance of the relative fibre orientation and inter-ply friction during forming.

Keywords: Textile composite; Fabrics; Finite element analysis; Forming


During the last decade, textile composite reinforcement has been used more and more in aeronautical industry. The prepregs and the Resin Transfer Moulding (RTM) are popular processes in composites manufacturing field. As the first stage in these processes, forming stage will have a significant influence on the resin flow impregnation by the modification on the permeability [1-4] and on the characteristics of the final composite part [5-8]. In this case, numerical simulation analysis of dry textile reinforcements should be performed to predict the feasibility forming conditions, optimize the main forming parameters and minimize the manufacturing defects [9-18].

Some papers have been performed about the multilayered composites forming by numerical simulation analysis [14, 19-22]. These numerical models deal with the composites forming through a mesoscopic approach. However, when the preform has a large number of ply and the dimensions of the preform are rather important, the forming simulation will be expensive and not efficient by using a mesoscopic model. In the present paper, a semi-discrete approach [13,16,18,23] and the method of forward increment Lagrange multipliers [24] are proposed to simulate the mechanical behaviors of composite layers and describe the inter-ply contacts during the forming. Through a set of forming simulations, the aspect of multilayered textile reinforcement forming will be shown manifestly.

Numerical Modelling with Approach “Semi- Discrete”

Numerical modelling of textile composites forming can be realized at different scales (Figure 1). The mechanical behaviour of textile composite is particular as the possible motions between fibres (microscopic scale) or yarns (mesoscopic scale) [25-27]. Most of the forming process simulations are performed at the macroscopic scale. Several mechanical models have been proposed for textile composite reinforcements [28-32]. However there is no widely accepted model that accurately describes all aspects of the mechanical behaviour of fabrics.