A nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs

A. M. Eldeeb, Y. M. Shabana, T. A. El-Sayed*, A. Elsawaf

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)
6 Downloads (Pure)

Abstract

Stresses reductions and/or raising the load-carrying capacity for a mechanical structure are always great dilemmas for researchers. In this article, a novel method is proposed, and its efficiency is examined for achieving these goals on functionally graded rotating nonuniform thickness discs. The originality of this method relies on comprising a geometrically well-defined area, into the whole structure, with certain homogeneous properties including density, thermal expansion coefficient, and elasticity matrix. This area acts as a reducer of the maximum values of various stress components. The solution of the magnetoelastic/magneto-thermoelastic problem is accomplished using the finite element method. The disc is subjected to partial uniform outer pressure, whereas, upon applying thermal loads; the thermal boundary conditions are considered symmetric. The proposed method is found to be beneficial as the obtained results demonstrated the ability to reduce the maximum stresses with different percentages depending on the location, angular width, and properties of the predefined area. This is reflected by an attainable decrease in the maximum compressive tangential stress and the von Mises stress by approximately 20.7% and 12.5%, respectively, under certain conditions.

Original languageEnglish
Article number13578
JournalScientific Reports
Volume13
Early online date21 Aug 2023
DOIs
Publication statusPublished - Dec 2023

Bibliographical note

Funding
Open access funding provided by The Science, Technology & Innovation Funding Authority (STDF) in cooperation with The Egyptian Knowledge Bank (EKB). This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Data Availability Statement

The datasets generated and/or analyzed during the current study are not publicly available due to being part of an ongoing study but are available from the first or the third authors on a reasonable request.

Keywords

  • materials for devices
  • mechanical engineering

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