Dataset of contact parameters and hysteresis loops from a round robin test for nonlinear dynamic analysis

This dataset is described in the data article [1] and presents friction hysteresis loops and contact parameters measured during the round robin test of the original research article [2]. Friction forces and tangential relative displacements for each specimen pair are stored as hysteresis raw data. Each hysteresis loop was post-processed to extract friction coefficient, tangential contact stiffness and energy dissipated, whose evolution with wear was thus obtained and stored as well. Matlab codes for post-processing and plotting data are included too.
The dataset can be used by researchers as a benchmark to validate theoretical models or numerical simulations of friction hysteresis models and wear mechanisms, and also to study the physics of friction hysteresis and its contact parameters. This high-frequency friction data can also be used as input in models for nonlinear dynamics applications as well as to provide information on the contact measurement uncertainty under high-frequency reciprocating motion. This data can also be used as a training set for machine learning applications or data-driven models, as well as supporting grant applications.

References
[1] Fantetti A., Botto D., Schwingshackl C., Zucca S., Experimental dataset from a round robin test of contact parameters and hysteresis loops for nonlinear dynamic analysis, Data in Brief, 2024, submitted.
[2] Fantetti A., Botto D., Zucca S., Schwingshackl C., Guidelines to use input contact parameters for nonlinear dynamic analysis of jointed structures: Results of a round robin test, Tribology International, 2023. https://doi.org/10.1016/j.triboint.2023.109158