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Journals / Sigma Mühendislik ve Fen Bilimleri Dergisi / 2018 / Cilt: 36 - Sayı: 1

PARAMETRIC EIGENVALUE ANALYSIS OF MINDLIN PLATES RESTING ON WINKLER FOUNDATION WITH SECOND ORDER FINITE ELEMENT

Yaprak Itır ÖZDEMİR
Pages
191–206
Publication Date
2018-03-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It is concluded that 8-noded finite element can be effectively used in the free vibration analysis of thick plates.

📌 3 Key Takeaways

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Objective & Hypothesis:The purpose of this paper is to study free vibration analysis of thick plates resting on Winkler foundation using Mindlin’s theory with shear locking free fourth order finite element, to determine the effects of the thickness/span ratio, the aspect ratio, subgrade reaction modulus and the boundary conditions on the frequency paramerets of thick plates subjected to free vibration.
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Key Findings & Data:In the analysis, 8-noded finite element is used.
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Conclusion & Impact:It is concluded that 8-noded finite element can be effectively used in the free vibration analysis of thick plates.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Free vibration parametric analysis · thick plate · mindlin’s theory

Abstract

The purpose of this paper is to study free vibration analysis of thick plates resting on Winkler foundation using Mindlin’s theory with shear locking free fourth order finite element, to determine the effects of the thickness/span ratio, the aspect ratio, subgrade reaction modulus and the boundary conditions on the frequency paramerets of thick plates subjected to free vibration. In the analysis, finite element method is used for spatial integration. Finite element formulation of the equations of the thick plate theory is derived by using second order displacement shape functions. A computer program using finite element method is coded in C++ to analyze the plates free, clamped or simply supported along all four edges. In the analysis, 8-noded finite element is used. Graphs are presented that should help engineers in the design of thick plates subjected to earthquake excitations. It is concluded that 8-noded finite element can be effectively used in the free vibration analysis of thick plates. It is also concluded that, in general, the changes in the thickness/span ratio are more effective on the maximum responses considered in this study than the changes in the aspect ratio

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Cite This Article

ÖZDEMİR, Y. I. (2018). PARAMETRIC EIGENVALUE ANALYSIS OF MINDLIN PLATES RESTING ON WINKLER FOUNDATION WITH SECOND ORDER FINITE ELEMENT. Sigma Mühendislik ve Fen Bilimleri Dergisi, Cilt: 36 - Sayı: 1, 191–206. https://ajindex.com/articles/419466

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