Open AccessCombination of electromagnetic measurements and FEM simulations for nondestructive determination of mechanical hardness
Author(s) -
Yasmine Gabi,
Olivier Martins,
Bernd Wolter,
Benjamin Straß
Publication year - 2017
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4993669
Subject(s) - finite element method , rockwell scale , calibration , materials science , hysteresis , magnetic hysteresis , nondestructive testing , point (geometry) , nonlinear system , mechanical engineering , structural engineering , composite material , engineering , physics , magnetization , magnetic field , geometry , mathematics , quantum mechanics
The paper considers the Rockwell hardness investigation by finite element simulation in inspection situation of press hardened parts using the 3MA non-destructive testing system. The FEM model is based on robust strategy calculation which manages the issues of geometry and the time multiscale, as well as the local nonlinear hysteresis behavior of ferromagnetic materials. 3MA simulations are performed at high level operating point in order to saturate the soft microscopic surface soft layer of press hardened steel and access mainly to the bulk properties. 3MA measurements are validated by comparison with numerical simulations. Based on the simulation outputs, a virtual calibration is run. This result constitutes the first validation; the simulated calibration is in agreement with the conventional experimental data. As an outstanding highlight a correlation between magnetic quantities and hardness can be described via FEM simulated signals and shows high accuracy to the measured results
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