NATURAL VIBRATIONS OF LAMINATED COMPOSITE BEAMS BY USING MIXED FINITE ELEMENT MODELLING

2002 ◽  
Vol 257 (4) ◽  
pp. 635-651 ◽  
Author(s):  
G.S. RAMTEKKAR ◽  
Y.M. DESAI ◽  
A.H. SHAH
Keyword(s):  
Finite Element ◽  
Finite Element Modelling ◽  
Mixed Finite Element ◽  
Laminated Composite ◽  
Composite Beams ◽  
Natural Vibrations ◽  
Element Modelling ◽  
Laminated Composite Beams

Effect of Shear Deformation on Bending of Laminated Composite Beams

1989 ◽  
Vol 111 (2) ◽  
pp. 159-164 ◽  
Author(s):  
F. Gordaninejad ◽  
A. Ghazavi
Keyword(s):  
Finite Element ◽  
Shear Deformation ◽  
Close Agreement ◽  
Mixed Finite Element ◽  
Laminated Composite ◽  
Beam Theory ◽  
Composite Beams ◽  
Closed Form Solutions ◽  
Parabolic Distribution ◽  
Laminated Composite Beams

A higher-order shear deformation beam theory is utilized to analyze the bending of thick laminated composite beams. This theory accounts for parabolic distribution of shear strain through the thickness of the beam. The predicted displacements show improvement over the Bresse-Timoshenko beam theory. Mixed finite element results are obtained for those cases where closed-form solutions are not available. The finite element and exact solutions are in close agreement. Numerical results are presented for single, two and three-layer beams under uniform and sinusoidal distributed transverse loadings.

Free Vibration of Laminated Composite Beams and Plates Using ADINA Finite Element Code

1995 ◽  
Author(s):  
James Stolte
Keyword(s):  
Finite Element ◽  
Natural Frequency ◽  
Laminated Composite ◽  
Shell Element ◽  
Composite Beams ◽  
Advanced Technology ◽  
Finite Element Code ◽  
First Order ◽  
Natural Frequency Analysis ◽  
Laminated Composite Beams

Abstract Composite materials are being investigated in advanced technology test beds for use in future armored vehicles. We are particularly interested in the response to impulsive loading for which the knowledge of natural frequency behavior is important. In this paper, we investigate the natural frequency analysis capabilities of the multilayered shell element of the ADINA finite element code as applied to laminated composite beams and plates. Results are compared to those published in the literature or those derived from exact solutions. The ADINA shell element employs a first-order shear deformation theory, and the results are found to agree well with other first-order theories. Although ADINA does not allow for a direct method of incorporating a shear correction factor commonly used in first-order theories, it is demonstrated how this can be included by modifying the material properties.

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