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Coupling effects in bending, buckling and free vibration of generally laminated composite beams

Chai, Gin-Boay / Yap, Chun Wee

A closed form expression to determine the effective flexural modulus of a laminated composite beam is developed and presented in this contribution. This effective flexural modulus is applied to the bending, buckling and free vibration response of generally laminated composite beams with various boundary supports. The expression was developed using the combination of the Euler-Bernoulli beam and classical lamination theory. In addition the results of an extensive finite element analysis are used to validate the analytical model. The comparison of the analytical results, the finite element results and the experimental results showed good correlation. It is also observed that coupling response is an important variable that must be included in the computation of the effective flexural stiffness of generally laminated beam.

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Coupling effects in bending, buckling and free vibration of generally laminated composite beams

Chai, Gin-Boay / Yap, Chun Wee

A closed form expression to determine the effective flexural modulus of a laminated composite beam is developed and presented in this contribution. This effective flexural modulus is applied to the bending, buckling and free vibration response of generally laminated composite beams with various boundary supports. The expression was developed using the combination of the Euler-Bernoulli beam and classical lamination theory. In addition the results of an extensive finite element analysis are used to validate the analytical model. The comparison of the analytical results, the finite element results and the experimental results showed good correlation. It is also observed that coupling response is an important variable that must be included in the computation of the effective flexural stiffness of generally laminated beam.

Coupling effects in bending, buckling and free vibration of generally laminated composite beams

Chai, Gin-Boay / Yap, Chun Wee

A closed form expression to determine the effective flexural modulus of a laminated composite beam is developed and presented in this contribution. This effective flexural modulus is applied to the bending, buckling and free vibration response of generally laminated composite beams with various boundary supports. The expression was developed using the combination of the Euler-Bernoulli beam and classical lamination theory. In addition the results of an extensive finite element analysis are used to validate the analytical model. The comparison of the analytical results, the finite element results and the experimental results showed good correlation. It is also observed that coupling response is an important variable that must be included in the computation of the effective flexural stiffness of generally laminated beam.

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Title:

Coupling effects in bending, buckling and free vibration of generally laminated composite beams

Contributors:

Chai, Gin-Boay (author) / Yap, Chun Wee (author)

Published in:

Composites Science and Technology ; 68 ; 1664-1670

Publication date:

2008

Size:

7 Seiten, 8 Bilder, 1 Tabelle, 12 Quellen

ISSN:

DOI:

https://doi.org/10.1016/j.compscitech.2008.02.014

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Biegebeanspruchung , Biegemodul , Biegesteifigkeit , Delaminierung (Schichtablösung) , Finite-Elemente-Methode , freie Schwingung , Knickbeanspruchung , Knickfestigkeit , mathematisches Modell , mechanisches Modell , Mehrlagenlaminat , numerische Analyse , theoretisches Modell , Träger (Bauwesen)

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