@incollection{HerrmannMoegingerUnseld, author = {Herrmann, Volker and M{\"o}ginger, Bernhard and Unseld, Claus}, title = {Quasi Static Indentation Measurements: A Tool for Micromechanical Investigations of Interfaces in Polymer Materials}, series = {Forschungsspitzen und Spitzenforschung}, booktitle = {Forschungsspitzen und Spitzenforschung}, editor = {Zacharias, Christoph}, publisher = {Physica}, address = {Heidelberg}, isbn = {978-3-7908-2126-0}, doi = {https://doi.org/10.1007/978-3-7908-2127-7_28}, pages = {315 -- 327}, abstract = {The ongoing miniaturization, multi-layer structure parts and hybrid parts require methods to determine mechanical properties on a micro-scale. However, there is a gap in measuring techniques. On one hand there are the classical methods to measure hardness e.g. VICKERS, ROCKWELL, UNIVERSAL, IRHD etc having resolutions typically above 100μm. On the other hand there are well-developed AFM methods that allow for the determination of mechanical properties in the nanometer range. This paper describes an indentation technique that yields data of mechanical properties in the micrometer range between typically 5 to 50 μm. The measuring device and the data evaluation is presented. Results of micro-mechanical mapping are shown for NR-SBR rubber interfaces, a fuel tank and a part manufactured by two component injection moulding. Finally, the measured micro-mechanical stiffness is compared to the YOUNG's modulus of the corresponding materials.}, language = {en} } @article{HerrmannMoegingerUnseld, author = {Herrmann, Volker and M{\"o}ginger, Bernhard and Unseld, Claus}, title = {Quasi-static Indentation Measurements: A Tool for Micro-mechanical Investigations of Interfaces in Polymer Materials}, series = {International Journal of Polymer Analysis and Characterization}, volume = {11}, journal = {International Journal of Polymer Analysis and Characterization}, number = {6}, doi = {https://doi.org/10.1080/10236660600980250}, pages = {405 -- 418}, abstract = {The ongoing use of miniaturization, multi layer structure parts, and hybrid parts requires methods to determine mechanical properties on a micro scale. However, there is a gap in measuring techniques. On one hand there are the classical methods to measure hardness, e.g., Vickers, Rockwell, Universal, and IRHD, having resolutions typically above 100 µm. On the other hand, there are well-developed AFM methods that allow for the determination of mechanical properties in the nanometer range. This article describes an indentation technique that yields data of mechanical properties in the micrometer range between typically 5 and 50 µm. The measuring device and the data evaluation are presented. Results of micro-mechanical mapping are shown for NR-SBR rubber interfaces, a fuel tank, and a part manufactured by two-component injection molding. Finally, the measured micro-mechanical stiffness is compared to the Young's modulus of the corresponding materials.}, language = {en} }