Analysis of the 3D draping behavior of carbon fiber non-crimp fabrics with eddy current technique
| Autor: | Richard Kupke, Marko Schiller, Thomas Gereke, Matthias Hübner, Martin Schulze, Henning Heuer, Georg Bardl, Chokri Cherif, Marcus Klein, Matthias Pooch, Andreas Nocke |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Tension (physics) Mechanical Engineering 02 engineering and technology Deformation (meteorology) 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Blank Industrial and Manufacturing Engineering Finite element method 0104 chemical sciences law.invention Mechanics of Materials law Nondestructive testing Eddy-current testing Ceramics and Composites Eddy current Crimp Composite material 0210 nano-technology business |
| Zdroj: | Composites Part B: Engineering. 132:49-60 |
| ISSN: | 1359-8368 |
| DOI: | 10.1016/j.compositesb.2017.08.007 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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