Browsing by Author "Yordanov, Ventseslav"

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Open Access
Data corresponding to paper: "Incorporation of a Viscoelastic-Elastoplastic Material Model for Asphalt based on the Multiscale Microlayer Model into an ALE Formulation for Pavement Structures Considering Dynamic Tire Loadings" by May et al. (submitted 2025)
(Technische Universität Dresden, 2025-09-12) May, Marcel; Anantheswar, Atul; Yordanov, Ventseslav; Derakhi, Elaheh; Hartung, Felix; Wollny, Ines; Eckstein, Lutz; Kaliske, Michael
This data publication contains the data related to the scientific contribution "Incorporation of a Viscoelastic-Elastoplastic Material Model for Asphalt based on the Multiscale Microlayer Model into an ALE Formulation for Pavement Structures Considering Dynamic Tire Loadings" by May et al. (submitted 2025). Abstract of the corresponding paper: During braking, acceleration, and steering maneuvers in road traffic, dynamic vertical loads are introduced into the pavement structure. These loads give rise to complex multiaxial stress states within the layered pavement structure, which consists of materials with differing mechanical behavior. The dynamic nature of these maneuvers requires that the resulting stress states have to be considered over large spatial and temporal intervals. In this work, a novel multiscale ALE-FEM approach is introduced for the first time, capable of capturing the complex, multiaxial stress states within the asphalt pavement during steering and acceleration maneuvers. Numerical efficiency and physical representativeness are achieved through the use of a finite viscoelastic–elastoplastic material model embedded in the microlayer framework, a thermodynamically derived multiscale approach that avoids the computational cost of a conventional FE² scheme. Additionally, the application of a dynamic Arbitrary Lagrangian-Eulerian (ALE) formulation ensures that the meshed geometry remains small in comparison to the extensive length of the actually traversed road section. To experimentally determine the loads generated by a tire during a steering maneuver, a single-wheel test rig is used, in which, the side slip angle is systematically varied. The measured data is then used to generate time- and space-resolved footprints, which serve as realistic boundary conditions for simulating tire pavement interaction.
Open Access
Tire Footprint Measurements of Commercial Truck Tires
(Technische Universität Dresden, 2025-12-02) Yordanov, Ventseslav; Hartung, Felix; Eckstein, Lutz
This data publication presents high-resolution measurements of tire contact patch pressure distributions obtained using a capacitive pressure-mapping sensor with 1.6 mm spatial resolution and 65,536 sensing points. The dataset captures contact pressures between 69 kPa and 2070 kPa for two commercial truck tires. Footprints were recorded at various wheel loads under a constant inflation pressures, providing detailed insight into load-dependent pressure behavior. All measurements were taken with the sensor mounted on a flat surface within the experimental setup, while the ika’s tire stiffness test rig (SteiReP) supplied controlled loading conditions to ensure repeatable data acquisition.