Nonlinear hygro-thermo-mechanical postbuckling of spiderweb-stiffened sandwich FG-GPLRC spherical shells and circular plates with porous core.
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| Title: | Nonlinear hygro-thermo-mechanical postbuckling of spiderweb-stiffened sandwich FG-GPLRC spherical shells and circular plates with porous core. |
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| Authors: | Nam, Vu Hoai1 (AUTHOR), Hoai, Nguyen Thi Thanh2,3 (AUTHOR), Thai, Kieu Quang1,3 (AUTHOR), Hieu, Pham Thanh1 (AUTHOR), Dong, Dang Thuy4,5 (AUTHOR) dangthuydong@tdtu.edu.vn |
| Source: | Acta Mechanica. Mar2026, Vol. 237 Issue 3, p925-947. 23p. |
| Subjects: | Spherical shells (Engineering), Sandwich construction (Materials), Composite materials, Mechanical buckling, Porous materials, Functionally gradient materials |
| Abstract: | The current paper is the first research on the nonlinear hygro-thermo-mechanical postbuckling behaviors of spiderweb-stiffened sandwich spherical shells (SShs) and circular plates (CPls). The shells/plates are made of functionally graded graphene platelet-reinforced composite (FG-GPLRC) with a porous core and stiffened by FG-GPLRC parallel and/or meridian stiffeners. The investigated structures are subjected to combined effects of the external pressure, temperature, and moisture changes. The Donnell shell theory (DST) is employed to describe the displacement field taking into account von Kármán geometric nonlinearities. Lekhnitskii's smeared stiffener technique is expanded to determine the stiffness components of the stiffened shells/plates. By choosing the polynomial solution form for the displacements and using the Ritz energy method, the governing equations of the problem are established, and the nonlinear hygro-thermo-mechanical postbuckling curves of the structures are obtained. The remarkable influences of various parameters such as material parameters, geometrical parameters, porous core, temperature, and moisture on the nonlinear postbuckling responses of the stiffened sandwich SShs/CPls are illustrated in the numerical example. [ABSTRACT FROM AUTHOR] |
| Copyright of Acta Mechanica is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 191944847 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Nonlinear hygro-thermo-mechanical postbuckling of spiderweb-stiffened sandwich FG-GPLRC spherical shells and circular plates with porous core. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Nam%2C+Vu+Hoai%22">Nam, Vu Hoai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hoai%2C+Nguyen+Thi+Thanh%22">Hoai, Nguyen Thi Thanh</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Thai%2C+Kieu+Quang%22">Thai, Kieu Quang</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hieu%2C+Pham+Thanh%22">Hieu, Pham Thanh</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dong%2C+Dang+Thuy%22">Dong, Dang Thuy</searchLink><relatesTo>4,5</relatesTo> (AUTHOR)<i> dangthuydong@tdtu.edu.vn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Acta+Mechanica%22">Acta Mechanica</searchLink>. Mar2026, Vol. 237 Issue 3, p925-947. 23p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Spherical+shells+%28Engineering%29%22">Spherical shells (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Sandwich+construction+%28Materials%29%22">Sandwich construction (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+buckling%22">Mechanical buckling</searchLink><br /><searchLink fieldCode="DE" term="%22Porous+materials%22">Porous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Functionally+gradient+materials%22">Functionally gradient materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The current paper is the first research on the nonlinear hygro-thermo-mechanical postbuckling behaviors of spiderweb-stiffened sandwich spherical shells (SShs) and circular plates (CPls). The shells/plates are made of functionally graded graphene platelet-reinforced composite (FG-GPLRC) with a porous core and stiffened by FG-GPLRC parallel and/or meridian stiffeners. The investigated structures are subjected to combined effects of the external pressure, temperature, and moisture changes. The Donnell shell theory (DST) is employed to describe the displacement field taking into account von Kármán geometric nonlinearities. Lekhnitskii's smeared stiffener technique is expanded to determine the stiffness components of the stiffened shells/plates. By choosing the polynomial solution form for the displacements and using the Ritz energy method, the governing equations of the problem are established, and the nonlinear hygro-thermo-mechanical postbuckling curves of the structures are obtained. The remarkable influences of various parameters such as material parameters, geometrical parameters, porous core, temperature, and moisture on the nonlinear postbuckling responses of the stiffened sandwich SShs/CPls are illustrated in the numerical example. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Acta Mechanica is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00707-025-04542-z Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 23 StartPage: 925 Subjects: – SubjectFull: Spherical shells (Engineering) Type: general – SubjectFull: Sandwich construction (Materials) Type: general – SubjectFull: Composite materials Type: general – SubjectFull: Mechanical buckling Type: general – SubjectFull: Porous materials Type: general – SubjectFull: Functionally gradient materials Type: general Titles: – TitleFull: Nonlinear hygro-thermo-mechanical postbuckling of spiderweb-stiffened sandwich FG-GPLRC spherical shells and circular plates with porous core. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Nam, Vu Hoai – PersonEntity: Name: NameFull: Hoai, Nguyen Thi Thanh – PersonEntity: Name: NameFull: Thai, Kieu Quang – PersonEntity: Name: NameFull: Hieu, Pham Thanh – PersonEntity: Name: NameFull: Dong, Dang Thuy IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00015970 Numbering: – Type: volume Value: 237 – Type: issue Value: 3 Titles: – TitleFull: Acta Mechanica Type: main |
| ResultId | 1 |
