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Standardizing the Single-Fibre Pull-Out Test for Fibre-Matrix Adhesion Characterization: Method and Insights

B. Leitner, F. Manis, S. Özcelik — Fraunhofer IGCV
C. Poitzsch, M. Khalid, E. Ingelsberger, S. Fliescher — Textechno Herbert Stein GmbH & Co. KG
A. Drieling, P. Hartwig, E. Dederer — Faserinstitut Bremen e. V.

Proceedings of the 6th International Conference and Exhibition on Thermoplastic Composites, ITHEC 2022.

The standardization of the micromechanical single-fibre pull-out test is urgently requested by the industry. The corresponding DIN SPEC 19289 “Fibre-reinforced Composites — Measurement of Interfacial Shear Strength by means of a Micromechanical Single-Fibre Pull-Out Test” was recently published within the scope of the publicly funded WIPANO project “WiPull”, which was conducted between the partners Fraunhofer IGCV, Faserinstitut Bremen and Textechno. This project also included testing of the most relevant thermoplastic matrices like PA6, PP, PEEK and PC in combination with carbon fibres, recycled carbon fibres, glass, and natural fibres. This paper includes key findings of the WiPull project including the impact of tempering, ageing, degradation, and temperature profiles on the measured fibre-matrix adhesion strength. Furthermore, results of the round robin trials are shown and discussed.

Find the full article here: https://publica.fraunhofer.de/entities/publication/b7311687-804d-4d96-b6ef-39684c834d56/details

Investigation of interfacial strength parameters in polymer matrix composites: Compatibility and reproducibility

Effects of various geometrical and physical factors, as well as the method of data reduction (analysis of experimental force–displacement curves) on the values of local interfacial strength parameters (local IFSS, τd, and critical energy release rate, Gic) determined by means of a single fiber pull-out test are discussed.

Serge Zhandarov, Edith Mäder, Christina Scheffler, Gerhard Kalinka, Claudia Poitzsch, Stefan Fliescher
Advanced Industrial and Engineering Polymer Research, Volume 1, Issue 1,2018, Pages 82-92


FIMATEST – A New Testing System to Determine the Fibre-Matrix Adhesion Strength by Means of Pull-Out Tests

Edith Mäder, Christina Scheffler, Andrea Miene, Stefan Fliescher, Ulrich Mörschel, Claudia Poitzsch
Proceedings of 56th Dornbirn-MFC (2017)

Textechno has a focus on the development of instruments for the characterization of the physical properties of reinforcement fibers, rovings and the fibre-matrix adhesion. We discuss in detail the measurement of the fibre-matrix adhesion strength by means of the FIMATEST system which has been developed together two research institutes, the Leibniz-Institut für Polymerforschung (IPF) in Dresden and the Faserinstitut Bremen (FIBRE). Получить больше информаций…

Measurement and Analysis of Drapeability Effects of Warp-Knit NCF with a Standardised, Automated Testing Device

Christ, M., Miene, A. & Mörschel, U. Appl Compos Mater (2017) 24: 803. https://doi.org/10.1007/s10443-016-9555-7

To Characterise the drapeability of reinforcement fabrics, is one of the most sought after abilities of those designing composite processes and components. Получить больше информаций…

New European Standard for Crimp- and Shrinkage Tests

The new European standard EN 14621 partially replaces the German standards DIN 53840 and DIN 53866, and contains crimp contraction- and shrinkage tests on multifilament yarns. Measurements according to the new standard can be automated by means of the automatic crimp- and shrinkage tester TEXTURMAT ME+.

The tester has already been in use for measurements according to the DIN standards as well as to ASTM D 4031 (crimp properties) and ASTM D 2259 (shrinkage). A special software for testing air-textured yarns enlarges the scope of application of this tester.

BCF yarn testing with DYNAFIL ME

Chemical Fibers International, Vol. 53, June 2003 Dr. Ulrich Mörschel, Ansgar Paschen, Dr. Wolfgang Stein Textechno Herbert Stein GmbH & Co. KG, Mönchengladbach/Germany Получить больше информаций…