Title: Suitable combination of a mean-stress correction method and a stress type for the fatigue analysis of aluminium alloy wheels under radial loading

Authors: Wassamon Phusakulkajorn; Krisda Tapracharoen; Somboon Otarawanna

Addresses: National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 114 Thailand Science Park, Thanon Pahonyothin, Tambon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand ' National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 114 Thailand Science Park, Thanon Pahonyothin, Tambon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand ' National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 114 Thailand Science Park, Thanon Pahonyothin, Tambon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand

Abstract: Finite element analysis (FEA) of the wheel radial fatigue test involves the selection of a combination of a mean-stress correction method and a stress type. This study aims to find the combination(s) of a mean-stress correction method and a stress type suitable for this application. In this work, the Gerber and Goodman mean-stress correction methods are compared when they are used in combination with the absolute maximum principal, signed von Mises and von Mises stresses. The effectiveness of each combination of a mean-stress correction method and a stress type in predicting fatigue failure in the wheel radial fatigue test was evaluated by comparing simulation results obtained by each combination method with experimental results. The results in this work suggest that using the Gerber or Goodman mean-stress correction method with the absolute maximum principal stress is suitable for the fatigue analysis of aluminium alloy wheels under radial loading.

Keywords: wheel radial fatigue test; finite element analysis; FEA; mean stress correction; Gerber diagram; Goodman diagram; absolute maximum principal stress.

DOI: 10.1504/IJMPT.2020.111311

International Journal of Materials and Product Technology, 2020 Vol.61 No.1, pp.34 - 52

Accepted: 28 Jul 2020
Published online: 19 Nov 2020 *

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