Free vibration analysis of variable stiffness composite laminated thin skew plates using IGA
A NURBS-based isogeometric finite element formulation is developed and adopted to the free vibration analysis of finite square and skew laminated plates. Variable stiffness plies are assumed due to implementation of curvilinear fiber<br />reinforcements. It is assumed due to employment of tow...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Iranian Society of Vibration and Acoustics
2018-07-01
|
| Series: | Journal of Theoretical and Applied Vibration and Acoustics |
| Subjects: | |
| Online Access: | http://tava.isav.ir/article_34471_cc4608afd94ed1857ea061081104f975.pdf |
| _version_ | 1797228972458639360 |
|---|---|
| author | Vahid Khalafi Jamshid Fazilati |
| author_facet | Vahid Khalafi Jamshid Fazilati |
| author_sort | Vahid Khalafi |
| collection | DOAJ |
| description | A NURBS-based isogeometric finite element formulation is developed and adopted to the free vibration analysis of finite square and skew laminated plates. Variable stiffness plies are assumed due to implementation of curvilinear fiber<br />reinforcements. It is assumed due to employment of tow placement technology, in each ply of variable stiffness composite laminated plate the fiber reinforcement orientation angle is changed linearly with respect to longitudinal geometry coordinate. The classic plate theory is utilized for structural model description. The cubic NURBS basis functions are employed to approximate the geometry of the plate while simultaneously serve as the shape functions for solution field approximation in the analysis. To show the effectiveness and accuracy of the developed formulation, some representative<br />results are extracted and compared to similar items available in the literature. The effects of curvilinear fiber angles, different geometries and various end constraints are evaluated on the variable stiffness composite laminated skew panel behavior. |
| first_indexed | 2024-04-24T15:05:11Z |
| format | Article |
| id | doaj.art-8bd6a99716664c53beee4cebf5fca204 |
| institution | Directory Open Access Journal |
| issn | 2423-4761 2423-4761 |
| language | English |
| last_indexed | 2024-04-24T15:05:11Z |
| publishDate | 2018-07-01 |
| publisher | Iranian Society of Vibration and Acoustics |
| record_format | Article |
| series | Journal of Theoretical and Applied Vibration and Acoustics |
| spelling | doaj.art-8bd6a99716664c53beee4cebf5fca2042024-04-02T13:39:40ZengIranian Society of Vibration and AcousticsJournal of Theoretical and Applied Vibration and Acoustics2423-47612423-47612018-07-014217118810.22064/tava.2018.81281.110034471Free vibration analysis of variable stiffness composite laminated thin skew plates using IGAVahid Khalafi0Jamshid Fazilati1Aerospace research institute, Mahestan St., Tehran, IranAerospace research institute, Mahestan St., Tehran, IranA NURBS-based isogeometric finite element formulation is developed and adopted to the free vibration analysis of finite square and skew laminated plates. Variable stiffness plies are assumed due to implementation of curvilinear fiber<br />reinforcements. It is assumed due to employment of tow placement technology, in each ply of variable stiffness composite laminated plate the fiber reinforcement orientation angle is changed linearly with respect to longitudinal geometry coordinate. The classic plate theory is utilized for structural model description. The cubic NURBS basis functions are employed to approximate the geometry of the plate while simultaneously serve as the shape functions for solution field approximation in the analysis. To show the effectiveness and accuracy of the developed formulation, some representative<br />results are extracted and compared to similar items available in the literature. The effects of curvilinear fiber angles, different geometries and various end constraints are evaluated on the variable stiffness composite laminated skew panel behavior.http://tava.isav.ir/article_34471_cc4608afd94ed1857ea061081104f975.pdfIsogeometric Analysiscurvilinear fibers laminateskew plateFree vibration |
| spellingShingle | Vahid Khalafi Jamshid Fazilati Free vibration analysis of variable stiffness composite laminated thin skew plates using IGA Journal of Theoretical and Applied Vibration and Acoustics Isogeometric Analysis curvilinear fibers laminate skew plate Free vibration |
| title | Free vibration analysis of variable stiffness composite laminated thin skew plates using IGA |
| title_full | Free vibration analysis of variable stiffness composite laminated thin skew plates using IGA |
| title_fullStr | Free vibration analysis of variable stiffness composite laminated thin skew plates using IGA |
| title_full_unstemmed | Free vibration analysis of variable stiffness composite laminated thin skew plates using IGA |
| title_short | Free vibration analysis of variable stiffness composite laminated thin skew plates using IGA |
| title_sort | free vibration analysis of variable stiffness composite laminated thin skew plates using iga |
| topic | Isogeometric Analysis curvilinear fibers laminate skew plate Free vibration |
| url | http://tava.isav.ir/article_34471_cc4608afd94ed1857ea061081104f975.pdf |
| work_keys_str_mv | AT vahidkhalafi freevibrationanalysisofvariablestiffnesscompositelaminatedthinskewplatesusingiga AT jamshidfazilati freevibrationanalysisofvariablestiffnesscompositelaminatedthinskewplatesusingiga |