A nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs
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 disc...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-39878-w |
| _version_ | 1797576994579283968 |
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| author | A. M. Eldeeb Y. M. Shabana T. A. El-Sayed A. Elsawaf |
| author_facet | A. M. Eldeeb Y. M. Shabana T. A. El-Sayed A. Elsawaf |
| author_sort | A. M. Eldeeb |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T22:01:39Z |
| format | Article |
| id | doaj.art-aa29739c125a446e89ba1df40391d23a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T22:01:39Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-aa29739c125a446e89ba1df40391d23a2023-11-19T12:56:27ZengNature PortfolioScientific Reports2045-23222023-08-0113111310.1038/s41598-023-39878-wA nontraditional method for reducing thermoelastic stresses of variable thickness rotating discsA. M. Eldeeb0Y. M. Shabana1T. A. El-Sayed2A. Elsawaf3Mechanical Design Department, Faculty of Engineering, Helwan UniversityMechanical Design Department, Faculty of Engineering, Helwan UniversityMechanical Design Department, Faculty of Engineering, Helwan UniversityMechanical Engineering Department, College of Engineering and Technology-Cairo Campus, Arab Academy for Science, Technology and Maritime Transport (AASTMT)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.https://doi.org/10.1038/s41598-023-39878-w |
| spellingShingle | A. M. Eldeeb Y. M. Shabana T. A. El-Sayed A. Elsawaf A nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs Scientific Reports |
| title | A nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs |
| title_full | A nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs |
| title_fullStr | A nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs |
| title_full_unstemmed | A nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs |
| title_short | A nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs |
| title_sort | nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs |
| url | https://doi.org/10.1038/s41598-023-39878-w |
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