Analysis of the 3D draping behavior of carbon fiber non-crimp fabrics with eddy current technique

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Assessing and controlling the complex deformation behavior of textile reinforcements fabrics remains one of the major challenges in the production of fiber-reinforced plastics. In this paper, the draping of +45°/-45° biaxial non-crimp fabrics to a hemispherical shape is investigated with an eddy current imaging technique. After an automated draping process, the textiles are scanned with a robot-guided eddy current measurement system. From the resulting conductivity maps of the samples, the local yarn directions are extracted by image analysis and the paths of individual yarns are reconstructed for both the upper and the lower layer. Experiments are carried out for different forming speeds, blank holder forces and different non-crimp fabric parameters (stitch length, stitch type, stitch tension and yarn count). The influences of these parameters are compared and discussed, with the conclusion that blank holder forces have by far the most significant influence on the draping result. Sample experimental results are compared to results from an FEM draping simulation.

Details

Original languageEnglish
Pages (from-to)49-60
Number of pages12
JournalComposites Part B: Engineering
Volume132
Publication statusPublished - 1 Jan 2018
Peer-reviewedYes

External IDs

ORCID /0000-0003-0421-4199/work/159171654
ORCID /0000-0001-7698-9095/work/159171663

Keywords

Research priority areas of TU Dresden

Keywords

  • Eddy current testing, Fabrics/textiles, Forming, Non-destructive testing, Preform

Library keywords