%0 Journal Article
%T An advanced geometrical model for laminated woven fabrics using Lam¨¦ exponents with enhanced accuracy
%A J£¿rg Bossert
%A Klaus D Jandt
%A Matthias ML Arras
%A Mike M¨¹hlst£¿dt
%A Stefan Maenz
%A Wolfgang Seifert
%J Journal of Composite Materials
%@ 1530-793X
%D 2018
%R 10.1177/0021998317725570
%X Three-dimensional stiffness tensors of laminated woven fabrics used in high-performance composites need precise prediction. To enhance the accuracy in three-dimensional stiffness tensor prediction, the fabric¡¯s architecture must be precisely modeled. We tested the hypotheses that: (i) an advanced geometrical model describes the meso-level structure of different fabrics with a precision higher than established models, (ii) the deviation between predicted and experimentally determined mean fiber-volume fraction (cf) of laminates is below 5%. Laminates of different cf and fabrics were manufactured by resin transfer molding. The laminates¡¯ meso-level structure was determined by analyzing scanning electron microscopy images. The prediction of the laminates¡¯ cf was improved by up to 5.1 vol% ( 11 . 0 %) compared to established models. The effect of the advanced geometrical model on the prediction of the laminate¡¯s in-plane stiffness was shown by applying a simple mechanical model. Applying an advanced geometrical model may lead to more accurate simulations of parts for example in automotive and aircraft
%K Fabrics/textiles
%K mechanical properties
%K laminate theory
%K microstructural analysis
%U https://journals.sagepub.com/doi/full/10.1177/0021998317725570