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, τ_d, and critical energy release rate, G_ic) 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

https://doi.org/10.1016/j.aiepr.2018.06.002

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

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. Read more

FIMATEST — Quality Assessment of Composites

DIN SPEC 8100 — New Standard for the Composite Industry

The DIN SPEC 8100 “Automated drapability testing for woven and non-crimp fabrics used in continuous fiber reinforced plastics” was developped and implemented by Textechno in cooperation with DIN, as well as SAERTEX, the Bremen Fibre Institute (FIBRE), Groz-Beckert KG and FTA Albstadt. Read about its making-of that has been highlighted by DIN as practical example.

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+.

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 Read more

New universal filament yarn tester

Chemical Fibers International 2003 Textechno Herbert Stein GmbH & Co. KG, Mönchengladbach/Germany Read more

New testing equipment for short fibres

IIBCC 2010, Aarlborg
Dr. Ulrich Mörschel, Erich Ingelsberger
Textechno Herbert Stein GmbH & Co. KG,
Mönchengladbach/Germany
Read more

Optimierte Garnauswahl in der Weberei durch Einsatz moderner Prüftechnik

Webereikolloquium Denkendorf 2008 Dr. U. Mörschel Textechno Herbert Stein GmbH & Co. KG, Mönchengladbach/Germany Read more

Testing of Carbon Fibers

The importance of carbon fibers as a reinforcement material in energy-saving lightweight composites is well accepted. Fast and reliable, i.e. automated, linear-density- and tensile testing of carbon fibers thus becomes increasingly important. Due to the special properties of carbon fibers an automatic handling of individual filaments has been considered to be problematic. TEXTECHNO in Mönchengladbach realizes an automated test of linear-density- and tensile properties on such carbon filaments in their automatic fiber test system FAVIMAT+ with ROBOT 2.

Dynamic Testing on Drawn Textured Yarns (DTY) with Dynafil ME

Dr. U. Mörschel, A. Paschen, Dr. W. Stein Textechno Herbert Stein GmbH & Co. KG, Mönchengladbach/Germany Read more

Automatic linear-density and tensile testing on carbon fibers

Automatic single-fiber linear-density and tensile tests on up to 500 individual carbon fibers are possible with the FAVIMAT-ROBOT 2 and FAVIMAT-AIROBOT 2 of Textechno. These carbon fiber testing techniques are described in this article.

Chemical Fibers International 4/2008 Dr. Ulrich Mörschel, Christine Faymonville, Erich Ingelsberger Textechno Herbert Stein GmbH & Co. KG, Mönchengladbach/Germany

Automatic linear-density and tensile testing on carbon fibers

Chemical Fibers International 4/2008
Dr. Ulrich Mörschel, Christine Faymonville, Erich Ingelsberger
Textechno Herbert Stein GmbH & Co. KG,
Mönchengladbach/Germany

Automatic single-fiber linear-density and tensile tests on up to 500 individual carbon fibers are possible with the Favimat-Robot 2 and Favimat-Airobot 2 of Textechno, which are described in this article.