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Development of a methodology for the experimental characterization of capillary forces in engineering textiles
The study of impregnation phenomena of reinforcements textiles requires the investigation of the capillary effects. Those effects are the results of the surface tension forces acting at the resin-fiber-gas interface. Those forces do affect the saturation process of the fiber tows and the overall flow dynamics of the fluid through the porous media
We aim to develop an innovative approach for the characterization of the capillary forces, based on the study of the compaction properties in dry and wet conditions. The results should provide relevant information on the properties of the materials at the transition zone, relevant for the modeling of the process. To do so we need to:
• Design a setup for the measurement of capillary flow, considering different monitoring techniques, like pressure sensors, dielectric sensors, optical sensors…
• Perform different experiments to quantify the effects of the capillary forces on the impregnation of dual scale textiles
We aim to develop an innovative approach for the characterization of the capillary forces, based on the study of the compaction properties in dry and wet conditions. The results should provide relevant information on the properties of the materials at the transition zone, relevant for the modeling of the process. To do so we need to: • Design a setup for the measurement of capillary flow, considering different monitoring techniques, like pressure sensors, dielectric sensors, optical sensors… • Perform different experiments to quantify the effects of the capillary forces on the impregnation of dual scale textiles
The overall objective of this thesis is to develop a setup for the characterization of the capillary effects of fiber reinforcements and to validate the methodology, performing experiments on different textile. The results of the thesis may result in a scientific publication (conference or journal).
The overall objective of this thesis is to develop a setup for the characterization of the capillary effects of fiber reinforcements and to validate the methodology, performing experiments on different textile. The results of the thesis may result in a scientific publication (conference or journal).
Ayyoub Kabachi
ETH Zurich
Institute of Design, Materials and Fabrication
LEE O 225
Leonhardstrasse 21, 8092 Zürich
Phone: +41 44 633 64 07
mkabachi@ethz.ch
www.structures.ethz.ch
Ayyoub Kabachi ETH Zurich Institute of Design, Materials and Fabrication LEE O 225 Leonhardstrasse 21, 8092 Zürich Phone: +41 44 633 64 07 mkabachi@ethz.ch www.structures.ethz.ch