Optical analysis and modelling of UD tape impregnation

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07.04.2025 | Awards
The 29ᵗʰ national SAMPE Symposium highlighted composite technologies for a sustainable future

Around 80 experts from science and industry came together in the university’s main building to discuss current developments in the field of composite materials. The event was organized by RWTH Aachen University in cooperation with SAMPE

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Bachelor thesis or Master thesis

The aim of the work is to be able to measure the impregnation over the mould length so that this can be predicted in future based on the process parameters. For this purpose, cameras are attached to the viewing windows of the mould and the light transmission of melt and fibres is measured. This is analysed using a greyscale evaluation and correlated with the pore content of the UD tape. Various process points are controlled in order to model the quality of the tape and the impregnation speed as a function of these.

Topic of the work:

The thesis deals with the development and implementation of an optical measuring system for monitoring the impregnation progress of fibers in a melt impregnation tool for the production of UD tape. The special feature of the Mould are the viewing windows, which make it possible to observe the progress of the impregnation of the fibers and evaluate it using a camera analysis.

Stuwi-Optische Analyse und Modellierung von UD-Tape Impraegnierung — Melt impregnation for UD tapes

The work is related to this research project:

The research project is a sub-project of the DediGrad Collaborative Research Center and deals with the production of graded, fiber-reinforced semi-finished products. Various tapes, profiles and press compounds are produced with different fiber volume contents and partly recycled plastics. The grading of the fiber volume content in the semi-finished product reduces the stiffness jumps between the layers and thus ensures a longer service life for the components made from it. The semi-finished products we produce will subsequently be integrated into components in other sub-projects of the Collaborative Research Center.

Your task:

You will work on the following tasks for a Master's thesis:	For a Bachelor's thesis you will work on the following tasks:
Design and structure of the camera system	Design and structure of the camera system
Implementation of an evaluation algorithm	Implementation of an evaluation algorithm
Carrying out experiments based on an experimental plan