Meso-Scale Finite Element Model for Rib-Stiffened Composites with Biaxial Weft-Knitted Reinforcements

Research output: Contribution to journalResearch articleContributedpeer-review


Shell-rib structures made of textile-reinforced composites are used in a wide range of applications to increase bending, buckling and torsional stiffness. Such composites are usually manufactured in differential construction at the preform level by assembling several textile structures or at the component level by the subsequent joining of separately manufactured shells and stiffening structures. Integral preform production is one way to overcome the disadvantages of the forenamed methods, such as high manual effort, failure during assembling or fiber distortion. Weft-knitting technology is excellent for achieving integral preforms for shell-rib components with a strong connection between the shell and the rib, especially while producing biaxial weft-knitted fabrics (BWKF) with reinforcing yarns in the warp and weft direction to improve its mechanical behavior. In this work, the possibilities of the knitting technique are investigated, and a finite element model for comparing different variants is developed and validated. A meso-scale Finite-Element-Method (FEM) model of the BWKF is used. The simulation results with the meso-scale model show a good correlation with experimental data by a description of bending strength and stiffness of different FRP configuration variations. The model can be used in further investigation of fiber-reinforced polymer (FRP) made from BWKF.


Original languageEnglish
Article number175
JournalJournal of Composites Science
Issue number5
Publication statusPublished - 24 Apr 2023

External IDs

unpaywall 10.3390/jcs7050175
Scopus 85160318669
WOS 000998334900001
ORCID /0000-0002-3916-3881/work/142241805
ORCID /0000-0003-0421-4199/work/142244815
ORCID /0000-0003-0262-8670/work/142245917
ORCID /0000-0002-9356-5611/work/142248700


DFG Classification of Subject Areas according to Review Boards

Subject groups, research areas, subject areas according to Destatis


  • biaxial weft-knitted fabrics (BWKF), fiber-reinforced polymer (FRP), meso-scale model, net shape composites, Net shape composites, Meso-scale model

Library keywords