Research Data Repository of Saxon Universities

OPARA is the Open Access Repository and Archive for Research Data of Saxon Universities.


Researchers of Saxon Universities can either publish their research data on OPARA, or archive it here to comply with requirements of funding acencies and good scientic practice, without public access.

You can find the documentation of this service at the ZIH Data Compendium websites. If you need suppourt using OPARA please contact the Servicedesk of TU Dresden.

Please note: The OPARA service was recently upgraded to a new technical platform (this site). Previously stored data will not be available here immediately. It can be found at the still active old version of OPARA. These stock data will be migrated in near future and then the old version of OPARA will finally be shut down. Existing DOIs for data publications remain valid.

Artwork based on 1, 2, 3, 4  @pixabay
 

Communities in OPARA

Select a community to browse its collections.

Recent Submissions

Item
Open Access
Variable total strain amplitude loading of 316L
(Technische Universität Bergakademie Freiberg, 2025-05-09) Szlosarek, Robert; Henkel, Sebastian; Nitzsche, Pia
This project investigates the behaviour of steel 316L under variable total strain amplitude loading, with a focus on understanding the material's response to complex loading conditions. Quasistatic tensile testing and fully reversed constant amplitude fatigue tests were conducted to characterize the material's properties. The variable amplitude tests were performed under total strain control, and the resulting stress-strain hysteresis loops were analysed to reveal the occurrence of mean stress after a drop in strain amplitude. Notably, the sign of the mean stress depends on the direction of strain transition between the tensile and compression domains. Furthermore, an ideal plastic material behaviour was observed after strain increase accompanied by mean stress. To facilitate further research and model development, the experimental data are published in combination with a research paper: Variable strain amplitude loading of steel 316L – experimental results and analytical modelling
Item
Open Access
Datenmodell der Forschungsdatenbank FVA 984 I
(Technische Universität Dresden, 2025-05-07) Becker, Nils
Im Rahmen des Forschungsvorhabens "Versuchsdatenkonditionierung" wurde eine Forschungsdatenbank für Schwingfestigkeitsversuche im Bereich Wellen und Welle-Nabe-Verbindungen erstellt. Die hier veröffentlichten Daten beschreiben das Datenmodell der Datenbank mit allen Tabellen, den darin enthaltenen Attributen und deren Eigenschaften.
Item
Open Access
Data for "Fractionalized fermionic multicriticality in anisotropic Kitaev spin-orbital liquids"
(Technische Universität Dresden, 2025-05-07) Fornoville, Max; Janssen, Lukas
The archive contains the data used to construct Figs. 1-3 of the paper "Fractionalized fermionic multicriticality in anisotropic Kitaev spin-orbital liquids" by M. Fornoville and L. Janssen [arXiv:2505.01493]. The work uses Majorana mean-field theory and renormalization group theory to study the low-temperature phase diagram of quantum Kitaev-Heisenberg spin-orbital models with XXZ anisotropy on the honeycomb lattice.
Item
Open Access
Investigations on prestressing wire breaks in a post-tensioned prefabricated girder – Distributed fiber optic strain data and Python scripts
(Technische Universität Dresden, 2025-05-06) Richter, Bertram; Will, Elias; Herbers, Max
This data set contains distributed fiber optic strain data and Python scripts for evaluation. The data was collected 2022-10-04 during experiments on a decommissioned bridge girder of type BTE 311.080.12. These prefabricated and post-tensioned girders were produced in the former GDR. In the experiments, tendons were deliberately damaged by cutting wires. Two locations on opposite lateral sites of the girder 1 m from the girder's middle were selected: C1 and C2. The data shows strain changes measured with a distributed fiber optic sensor (DFOS) installed in the underside of the girder. The DFOS was routed in three segments along the free span of the girder.
Item
Open Access
Particle image velocimetry inside in-axis and off-axis stretched Newtonian liquid bridges
(Technische Universität Bergakademie Freiberg, 2025-05-06) Fritzsche, Lisa; Bauer, Katrin
Supplemental material for the publication: "Particle image velocimetry of the flow field inside in-axis and off-axis stretched liquid bridges" by Fritzsche, L., Bauer, K., & Schwarze, R. (2025). The study introduces a novel experimental technique that enables comprehensive visualization and measurement of the internal flow field of liquid bridges throughout the stretching process. By embedding the liquid bridge in a refractive-index-matched immiscible outer liquid phase, unobstructed optical access to the entire volume is provided and optical distortions are eliminated. The data collection archived here contains the time-resolved PIV data (velocity fields) for all cases discussed in the publication, raw images for two representative cases (plate speeds 5 mm/s), and evaluated minimum diameters over time (including raw images) for liquid-air systems to compare to the liquid-liquid system of the PIV measurements.