Setting bounds for in-plane shear induced fiber angle deviations in bi-axial non-crimp fabrics

Setting bounds for in-plane shear induced fiber angle deviations in bi-axial non-crimp fabrics

de Zeeuw, C.M. (TU Delft Delft Aerospace Structures and Materials Laboratory; SAM|XL)
Peeters, D.M.J. (TU Delft Aerospace Structures & Computational Mechanics)
Bergsma, O.K. (TU Delft Structural Integrity & Composites)
Benedictus, R. (TU Delft Structural Integrity & Composites; SAM|XL)

2022

For pick-and-place processes to become widely implemented in industry a consistent and acceptable product quality needs to be achieved. In the state of the art it is assumed that reinforcements will be in perfect condition at the start of forming or draping. In reality the handling process can already result in undesired deformations. The current work will look at fiber angle deviations that occur during this process due to in-plane shear. It is shown that bounds can be set for these fiber angle deviations based on experimental work. Periodic representative volume element homogenization is used to obtain homogenized material properties for a bi-axial non-crimp fabric with a specific construction. With these material properties the in-plane shear strain, and thus the fiber angle deviations, can be predicted. The presented methodology and results obtained using it can be a basis in the design process for automated handling of reinforcements and for in-situ quality control of the pick-and-place process.

composite fabrics
composites
high performance fabrics
performance
structure properties
technical nonwoven fabrics

http://resolver.tudelft.nl/uuid:f2642a6d-a647-4232-8d9c-45cedfc75cec

https://doi.org/10.1177/15280837221113921

1528-0837

Journal of Industrial Textiles, 52

Institutional Repository

journal article

© 2022 C.M. de Zeeuw, D.M.J. Peeters, O.K. Bergsma, R. Benedictus