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Mechanical properties of hybrid FRP bars and nano-hybrid FRP bars

100%
Szmigiera E. D., Protchenko K., Urbański M., Garbacz A., Szmigiera E. D., Protchenko K., Urbański M., Garbacz A.
Archives of Civil Engineering
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2019
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vol. 65
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issue 1
2
Content available remote

Automatic Measurement Station for Ferrite Materials Testing

99%
Charubin T., Nowak P., Nowicki M., Szewczyk R., Urbański M.
Acta Physica Polonica A
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2018
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vol. 133
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issue 4
1049-1052
EN
The paper presents automatic and modular measurement station for the magnetic materials testing. It allows for measurements of magnetic hysteresis loops under various regimes (sine, triangle or arbitrary magnetizing field, sine or triangle magnetic flux density) and relative permeability curves. The modular nature of the system allows for measurements of magnetic parameters under additional external influences, such as temperature and stress. The system is currently used for measurements of ferrite materials parameters.
3
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Discrete Inverse Transformation for Eddy Current Tomography

85%
Nowak P., Urbański M., Raback P., Ruokolainen J., Kachniarz M., Szewczyk R.
Acta Physica Polonica A
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2018
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vol. 133
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issue 3
701-703
EN
Paper presents results of a discrete inverse tomography transformation on exemplary results from eddy current tomography setup. Eddy current phenomena is highly non-linear and measurement results are ill-posed function of distribution of physical properties of the matter (mostly electrical conductivity and magnetic permeability). Thus the inverse transformation (reconstruction of objects shape) is based on an optimization algorithm in which objects model is described as a discrete array. With the usage of Finite Element Method (FEM) tomography measurement process is reconstructed and modelling results are compared with the measurement.
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