Finite strip progressive damage analysis of relatively thick imperfect laminates under end-shortening strain.
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| Title: | Finite strip progressive damage analysis of relatively thick imperfect laminates under end-shortening strain. |
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| Authors: | Kurkaani Barvaj, A.1 (AUTHOR), Ghannadpour, S. A. M.2 (AUTHOR), Nafar Dastgerdi, J.1 (AUTHOR), Ovesy, H. R.1 (AUTHOR) ovesy@aut.ac.ir |
| Source: | Acta Mechanica. Nov2023, Vol. 234 Issue 11, p5229-5248. 20p. |
| Subjects: | Laminated materials, Finite strip method, Ultimate strength, Shear (Mechanics), Finite element method, Composite plates |
| Abstract: | This paper studies the ultimate strength and progressive damage behavior of imperfect composite laminated plates under end-shortening strain using the semi-analytical finite strip method (FSM). Plates with various thicknesses and boundary conditions are perused. First-order shear deformation theory with the assumption of large deflections is considered. To analyze the failure in the laminates, the Hashin and Rotem failure criterion is used, and once the failure occurs, the material properties decrease instantaneously. Three different scenarios have been considered to apply material properties degradation in the failed ply: the complete ply degradation scenario, the strip degradation scenario (SDS), and the strip region degradation scenario. In the first scenario, the properties of the entire ply are degraded instantaneously after predicting the failure. In contrast, in the SDS, the reduction of material properties occurs only in the strip where the failure has occurred. In the third scenario, in order to increase the accuracy of damage analysis, each strip is divided into three regions, and material properties are degraded in the strip's region where the failure has happened. A convergence study is performed with regard to both the number of terms of displacement fields along the strip and the number of strips used across the laminates. To validate the damage responses, the results obtained by the proposed method have been compared with the finite element method (FEM) and available results in the literature. The introduced approach overcomes the limitations of previous methods, such as Ritz, in applying different boundary conditions and is much more suitable than the FEM in terms of simplicity of implementation and computational time. [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.) | |
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| Items | – Name: Title Label: Title Group: Ti Data: Finite strip progressive damage analysis of relatively thick imperfect laminates under end-shortening strain. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kurkaani+Barvaj%2C+A%2E%22">Kurkaani Barvaj, A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ghannadpour%2C+S%2E+A%2E+M%2E%22">Ghannadpour, S. A. M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nafar+Dastgerdi%2C+J%2E%22">Nafar Dastgerdi, J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ovesy%2C+H%2E+R%2E%22">Ovesy, H. R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ovesy@aut.ac.ir</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Acta+Mechanica%22">Acta Mechanica</searchLink>. Nov2023, Vol. 234 Issue 11, p5229-5248. 20p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Laminated+materials%22">Laminated materials</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+strip+method%22">Finite strip method</searchLink><br /><searchLink fieldCode="DE" term="%22Ultimate+strength%22">Ultimate strength</searchLink><br /><searchLink fieldCode="DE" term="%22Shear+%28Mechanics%29%22">Shear (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+plates%22">Composite plates</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper studies the ultimate strength and progressive damage behavior of imperfect composite laminated plates under end-shortening strain using the semi-analytical finite strip method (FSM). Plates with various thicknesses and boundary conditions are perused. First-order shear deformation theory with the assumption of large deflections is considered. To analyze the failure in the laminates, the Hashin and Rotem failure criterion is used, and once the failure occurs, the material properties decrease instantaneously. Three different scenarios have been considered to apply material properties degradation in the failed ply: the complete ply degradation scenario, the strip degradation scenario (SDS), and the strip region degradation scenario. In the first scenario, the properties of the entire ply are degraded instantaneously after predicting the failure. In contrast, in the SDS, the reduction of material properties occurs only in the strip where the failure has occurred. In the third scenario, in order to increase the accuracy of damage analysis, each strip is divided into three regions, and material properties are degraded in the strip's region where the failure has happened. A convergence study is performed with regard to both the number of terms of displacement fields along the strip and the number of strips used across the laminates. To validate the damage responses, the results obtained by the proposed method have been compared with the finite element method (FEM) and available results in the literature. The introduced approach overcomes the limitations of previous methods, such as Ritz, in applying different boundary conditions and is much more suitable than the FEM in terms of simplicity of implementation and computational time. [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/s00707-023-03656-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 5229 Subjects: – SubjectFull: Laminated materials Type: general – SubjectFull: Finite strip method Type: general – SubjectFull: Ultimate strength Type: general – SubjectFull: Shear (Mechanics) Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Composite plates Type: general Titles: – TitleFull: Finite strip progressive damage analysis of relatively thick imperfect laminates under end-shortening strain. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kurkaani Barvaj, A. – PersonEntity: Name: NameFull: Ghannadpour, S. A. M. – PersonEntity: Name: NameFull: Nafar Dastgerdi, J. – PersonEntity: Name: NameFull: Ovesy, H. R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 00015970 Numbering: – Type: volume Value: 234 – Type: issue Value: 11 Titles: – TitleFull: Acta Mechanica Type: main |
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