Comparative assessment of entire bending-torsion fracture surface for 10HNAP steel using different optical measurement techniques
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1
Faculty of Mechanical Engineering and Ship Technology, Gdańsk University of Technology, 11/12 Gabriela Narutowicza, Gdańsk 80-233, Poland
2
EkoTech Center, Gdańsk University of Technology, 11/12 Gabriela Narutowicza, Gdańsk 80-233, Poland
3
Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 12, 35-959 Rzeszów, Poland
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Department of Mechanical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
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High-Value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan
Corresponding author
Wojciech Macek
Faculty of Mechanical Engineering and Ship Technology, Gdańsk University of Technology, 11/12 Gabriela Narutowicza, Gdańsk 80-233, Poland
Adv. Sci. Technol. Res. J. 2025; 19(6):267-274
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ABSTRACT
This research aims to compare two microscopic measurement techniques: Confocal and Focus Variation, for the assessment of the entire fracture surface method. The measurements were conducted using the Sensofar S Neox 3D and Alicona InfiniteFocus G4 optical profilometers. Surface parameters were assessed for the entire fracture regions of the 10HNAP structural steel ring V-notched specimen. Fatigue test were performed under combination of bending and torsional moments. Stationary and ergodic random loadings had normal probability distribution and wide-band frequency spectra from 0 to 60 Hz. The obtained results for arithmetic mean heigh (Sa) and root mean square height (Sq) parameters did not show a comprehensible difference between the applied measurement techniques for analysed specimen. Additionally, the process of filling in non-measured (NM) points does not significantly affect the results when compared to the raw data. Thus, both measurement devices and measurement techniques can be employ to the entire fracture method.