Simulation of the process of metal hardness measurement by the rockwell method

• Autorzy: Berczyński S. , Grochała D. , Grządziel Z.

Identyfikatory

DOI

10.2478/ntpe-2018-0081

• Języki publikacji: EN

Abstrakty

EN

The article presents a simulation of metal hardness determination by the Rockwell method. The authors describe a physical model of an indenter and the examined sample built by means of the Nastran FX 2010 program using the finite elements method. The modelling included subsequent stages of indenter loads that follow the procedure used in the method. The verifying calculations were made for the results of C45 steel hardness of approx. 20 HRC. Two methods of hardness measurements were analyzed. A diamond cone was used as an indenting tool in one method, a steel ball in the other. As a result of calculations, spatial maps of elastic and plastic strains and stresses were obtained throughout the process. The hardness results obtained from computer simulations and those from experiments involving C45 steel are similar. metal hardness, Rockwell method, finite elements method, Nastran FX 2010, elastic strains twardość metalu, metoda Rockwella, metoda elementów skończonych, Nastran FX 2010, odkształcenia sprężyste

Słowa kluczowe

EN

metal hardness; Rockwell method; finite elements method; Nastran FX 2010; elastic strains

PL

twardość metali; metoda Rockwella; metoda elementów skończonych; odkształcenia sprężyste

• Wydawca: STE GROUP ; De Gruyter
• Czasopismo: New Trends in Production Engineering
• Rocznik: 2018
• Tom: Vol. 1, Iss. 1
• Strony: 647--654
• Opis fizyczny: Bibliogr. 10 poz. rys., tab.

Twórcy

autor

Berczyński S.

• West Pomeranian University of Technology, Poland

autor

Grochała D.

• West Pomeranian University of Technology, Poland

autor

Grządziel Z.

• Maritime University of Szczecin, Poland

Bibliografia

• 1. Haimann, R. (1974). Metaloznawstwo. Wrocław: Politechnika Wrocławska. IPNT. Twardość metali. [online] Available at: https://www.am.szczecin.pl/userfiles/File/laboratoria/wm/IPNT/Twardosc_metali.pdf [Accessed 10 Apr. 2018].
• 2. Karakasidis, T.E., Georgiou, D.N. and Nieto, J.J. (2012). Fuzzy regression analysis: An application on tensile strength of materials and hardness scales. Journal of Intelligent & Fuzzy Systems, 23(5), pp. 177-186.
• 3. Konowalski, K. (2005). Pomiary twardości metali. [online] Available at: http://kmpkm.zut.edu.pl/pub/Ogloszenia/Konowalski%20Konrad/Skrypty/Pomiary%20twardosci%20metali.pdf [Accessed 10 Apr. 2018].
• 4. Low, S.R. (2000). Rockwell Hardness Measurement of Metallic Materials. Washington: National Institute of Standards and Technology.
• 5. PKN (2016) PN-EN ISO 6508-1:2016-10 EN, Metale – Pomiar twardości sposobem Rockwella – Część 1: Metoda badań.
• 6. Politechnika Gdańska. Podstawy obróbki cieplnej stopów żelaza. Hartowanie i odpuszczanie. [online] Available at: http://www.im.mif.pg.gda.pl/download/materialy_dydaktyczne/PIM_15_hartowanie_odpuszczanie.pdf [Accessed 10 Apr. 2018].
• 7. Steel Express. Steel Hardness Conversion Table. [online] Available at:http://www.steelexpress.co.uk/steel-hardness-conversion.html [Accessed 10 Apr. 2018].
• 8. WAT. Pomiary twardości i mikrotwardości. [online] Available at: (http://www.wtc.wat.edu.pl/images/dydaktyka/katedra/jozwiak/pomiary_twardosci.pdf [Accessed 10 Apr. 2018].
• 9. Yang, R., Zhang, T.H., Jiang, P. and Bai, Y.L. (2008). Experimental verification and theoretical analysis of the relationships between hardness, elastic modulus, and the work of indentation. Applied Physics Letters, 92(23), pp. 231906.
• 10. Zhang, T., Jiang, F., Lan, Y. and Xu, X. (2018). FEM Modeling of the Relationship between the High-Temperature Hardness and High-Temperature, Quasi-Static Compression Experiment. Materials, 11(1), pp. 34.