Finite element static and dynamic analyses of folded plates

Samanta, Asokendu; Mukhopadhyay, Madhujit

doi:10.1016/s0141-0296(97)90172-3

Cited by 153 publications

(68 citation statements)

References 11 publications

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“…The comparison of free vibration properties was performed using four FE models of a large, unsupported sheet. One model was a thorough, 3-dimensional representation of the corrugated sheet, and the other three models were of orthotropic plates with equivalent flexural rigidities calculated according to Samanta and Mukhopadhyay [1], Briassoulis [2], and Liew et al [3], see Figure 2. These rigidities were used to calculate the input for the MID2 material properties defined above.…”

Section: Methodsmentioning

confidence: 99%

“…Extensional rigidities were calculated according to Samanta and Mukhopadhyay [1] and Briassoulis [2]. These values were benchmarked in extension, again with a fully modeled corrugated sheet as a reference.…”

Section: Methodsmentioning

confidence: 99%

“…To reduce the required amount of elements, 2-dimensional, orthotropic models may be used to represent the properties of a corrugated sheet. Samanta and Mukhopadhyay [1], Briassoulis [2], and Liew et al [3] have derived analytical expressions for the extensional and flexural rigidities of a corrugated sheet. These expressions are here benchmarked against each other with finite element analysis (FEA) in extension, modal analysis, checking both frequency and mode shape, and buckling analysis.…”

Section: Introductionmentioning

confidence: 99%

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Orthotropic Models of Corrugated Sheets in Finite Element Analysis

Wennberg

Wennhage

Stichel

2011

ISRN Mechanical Engineering

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properly cited.To reduce computational effort of finite element (FE) calculations a corrugated sheet is replaced with an orthotropic plate. Analytical expressions for the mechanical properties are studied and compared to finite Element calculations in extension, free vibration, and buckling. Good similarity is shown in the stiffened and transverse direction of the corrugated sheet; however, the orthotropic models do not give an accurate twisting behavior. The stiffened direction of the corrugated sheet best matches the analytical expressions. Keeping in mind the presented limitation, the orthotropic model presented herein can be used to drastically reduce the number of elements needed when modelling corrugated sheet with finite elements.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Orthotropic Models of Corrugated Sheets in Finite Element Analysis

Wennberg

Wennhage

Stichel

2011

ISRN Mechanical Engineering

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“…등가모델을 이용하여 주름판에 대해 만족할 만한 결과를 얻기 위해서는 직교이방성모델의 등가강성을 보다 정확히 예측하여야 한다. 등방성 판에 대 해서는 많은 연구가들이 등가강성을 유도하였으며 [2][3][4], 복합재료 주름판에 대해서도 많은 자료를 찾아 볼 수 있다 [5][6][7][8][9][10][11][12]. 그러나 이들은 주로 등가강성 유도에 주안점을 두 고 연구를 진행하였으며, 등가모델을 이용한 기계적 거동을 분석한 연구는 매우 제한적이다 [5,10,11].…”

Section: 킬 수 있어 최근에는 비행기의 모핑 날개 등과 같은 유연 구 조물에 적용되고 있다unclassified

Vibration Analysis of Laminated Composite Corrugated Plates

Park¹,

Kim²

2016

Composites Research

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This work presents the free vibration characteristics of laminated composite corrugated rectangular plates using the analytical method. Because it is very difficult to determine its mechanical behavior of 3-dimensional corrugated structures analytically, the equivalent homogenization model is adapted to investigate the overall mechanical behavior of corrugated structures. The corrugated element can be homogenized as an orthotropic material. Both the effective extensional and flexural stiffness of this homogenized equivalent orthotropic material are considered in the analysis. The present analytical results are validated by those obtained from 3D finite element analysis based on shell elements. The natural frequencies and global vibration mode shapes obtained from present analytical and finite element analysis are presented. Some numerical results are presented to check the effect of the geometric properties.

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“…The current investigation can also provide guidelines for installing the corrugated panels in real-world applications. In the previous references, the symmetry of the structure is usually applied and only half [115] or quarter [31,116] of the corrugation unit is analysed. The fixed boundary condition is applied to calculate the strain energy and internal moment.…”

Section: Background and Model Definitionmentioning

confidence: 99%

Design and Optimisation of Morphing Aircraft

Wang¹

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Finite element static and dynamic analyses of folded plates

Cited by 153 publications

References 11 publications

Orthotropic Models of Corrugated Sheets in Finite Element Analysis

Orthotropic Models of Corrugated Sheets in Finite Element Analysis

Vibration Analysis of Laminated Composite Corrugated Plates

Design and Optimisation of Morphing Aircraft

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