Study on nonlinear asymmetric thermomechanical stability of microsize FGM curved beams based on nonlocal couple stress curvature sensitive model
In the ongoing research examination, a meshfree-based numerical curvature sensitive framework is advanced to analyze the nonlinear asymmetric thermomechanical stability characteristics of microsize curved beams composed of functionally graded materials (FGMs) and subjected to an arbitrary-located co...
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Elsevier
2025-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025005717 |
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| author | Saeid Sahmani Kamila Kotrasova Muhammad Atif Shahzad Veronika Valaskova Mona Zareichian Babak Safaei |
| author_facet | Saeid Sahmani Kamila Kotrasova Muhammad Atif Shahzad Veronika Valaskova Mona Zareichian Babak Safaei |
| author_sort | Saeid Sahmani |
| collection | DOAJ |
| description | In the ongoing research examination, a meshfree-based numerical curvature sensitive framework is advanced to analyze the nonlinear asymmetric thermomechanical stability characteristics of microsize curved beams composed of functionally graded materials (FGMs) and subjected to an arbitrary-located concentrated load, uniform temperature rise as well as diverse end supports. As a means to apprehend size dependencies, the nonlocal couple stress theory (NCST) continuum elasticity theory is executed contingent the fifth-order shear flexible curved beam formulations incorporating the thickness stretch. Therefore, as a pioneer exploration, the size-dependent curvature sensitive model of concentrated loaded microsize curved beam is mathematically formulated. To originate the numerical curvature sensitive model, the radial point interpolation meshfree technique is utilized embracing the variation of the nodal points density based upon the background decomposition method (BDM). It is realized that the temperature rise causes to elevate the concentrated loads attributed to the upper limit points, while it leads to decline the concentrated loads associated with the lower limit points. Also, by combination of the softening consequence related to the nonlocal stress tensor with high temperature rise, the number of detected limit points allied to the small curvature sensitivity parameter increases from two points to four points. |
| format | Article |
| id | doaj-art-0588f93f3f3e4c8f9fcde635a44f6f90 |
| institution | OA Journals |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-0588f93f3f3e4c8f9fcde635a44f6f902025-08-20T02:02:12ZengElsevierResults in Engineering2590-12302025-03-012510449310.1016/j.rineng.2025.104493Study on nonlinear asymmetric thermomechanical stability of microsize FGM curved beams based on nonlocal couple stress curvature sensitive modelSaeid Sahmani0Kamila Kotrasova1Muhammad Atif Shahzad2Veronika Valaskova3Mona Zareichian4Babak Safaei5Department of Civil Engineering, School of Science and Technology, The University of Georgia, Tbilisi 0171, Georgia; School of Civil, Environmental, and Architecture Engineering, Korea University, Seoul 02841, South KoreaDepartment of Structural Mechanics, Institute of Structural Engineering and Transportation Structures, Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, 04200 Kosice, SlovakiaDepartment of Industrial Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi ArabiaDepartment of Structural Mechanics and Applied Mathematics, Faculty of Civil Engineering, University of Zilina, Univerzitna 8215/1, 010 26 Zilina, Slovakia; Corresponding author.Department of Civil Engineering, School of Science and Technology, The University of Georgia, Tbilisi 0171, GeorgiaDepartment of Mechanical Engineering, Eastern Mediterranean University, Famagusta, North Cyprus via Mersin 10, Turkey; UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South AfricaIn the ongoing research examination, a meshfree-based numerical curvature sensitive framework is advanced to analyze the nonlinear asymmetric thermomechanical stability characteristics of microsize curved beams composed of functionally graded materials (FGMs) and subjected to an arbitrary-located concentrated load, uniform temperature rise as well as diverse end supports. As a means to apprehend size dependencies, the nonlocal couple stress theory (NCST) continuum elasticity theory is executed contingent the fifth-order shear flexible curved beam formulations incorporating the thickness stretch. Therefore, as a pioneer exploration, the size-dependent curvature sensitive model of concentrated loaded microsize curved beam is mathematically formulated. To originate the numerical curvature sensitive model, the radial point interpolation meshfree technique is utilized embracing the variation of the nodal points density based upon the background decomposition method (BDM). It is realized that the temperature rise causes to elevate the concentrated loads attributed to the upper limit points, while it leads to decline the concentrated loads associated with the lower limit points. Also, by combination of the softening consequence related to the nonlocal stress tensor with high temperature rise, the number of detected limit points allied to the small curvature sensitivity parameter increases from two points to four points.http://www.sciencedirect.com/science/article/pii/S2590123025005717Thermo-elasticityMicroscale structuresMeshfree techniqueFunctionally graded compositesBackground decomposition method |
| spellingShingle | Saeid Sahmani Kamila Kotrasova Muhammad Atif Shahzad Veronika Valaskova Mona Zareichian Babak Safaei Study on nonlinear asymmetric thermomechanical stability of microsize FGM curved beams based on nonlocal couple stress curvature sensitive model Results in Engineering Thermo-elasticity Microscale structures Meshfree technique Functionally graded composites Background decomposition method |
| title | Study on nonlinear asymmetric thermomechanical stability of microsize FGM curved beams based on nonlocal couple stress curvature sensitive model |
| title_full | Study on nonlinear asymmetric thermomechanical stability of microsize FGM curved beams based on nonlocal couple stress curvature sensitive model |
| title_fullStr | Study on nonlinear asymmetric thermomechanical stability of microsize FGM curved beams based on nonlocal couple stress curvature sensitive model |
| title_full_unstemmed | Study on nonlinear asymmetric thermomechanical stability of microsize FGM curved beams based on nonlocal couple stress curvature sensitive model |
| title_short | Study on nonlinear asymmetric thermomechanical stability of microsize FGM curved beams based on nonlocal couple stress curvature sensitive model |
| title_sort | study on nonlinear asymmetric thermomechanical stability of microsize fgm curved beams based on nonlocal couple stress curvature sensitive model |
| topic | Thermo-elasticity Microscale structures Meshfree technique Functionally graded composites Background decomposition method |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025005717 |
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