An effective solution of the composite (FMG'S) beam structures

Title:

An effective solution of the composite (FMG'S) beam structures

Creator:

Murín, Justín and Kutiš, Vladimír

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:ac0f1a52-ec11-496c-9bc2-5f6183309170
uuid:ac0f1a52-ec11-496c-9bc2-5f6183309170

Subject:

composite beam finite element, sandwich beam, functionally graded materials, and mixture rules

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The additive mixture rules have been extended for calculation of the effective longitudinal elasticity modulus of the composite (Functionally Graded Materials - FGM's) beams with both the polynomial longitudinal variation of the constituent's elasticity modulus. Stiffness matrix of the composite Bernoulli-Euler beam has been established which contains the transfer constants. These transfer constants describe very accurately the polynomial uni-axially variation of the effective longitudinal elasticity modulus, which is calculated using the extended mixture rules. The mixture rules have been extended for calculation of the effective elasticity modulus for stretching and flexural bending of the layer-wise symmetric composite (FGM's) sandwich beam finite element as well. The polynomial longitudinal and transversally symmetric layer-wise variation of the sandwich beam stiffness has been taken into the account. Elastic behaviour of the sandwich beam will be modelled by the laminate theory. Stiffness matrix of such new sandwich beam element has been established. The nature and quality of the matrix reinforcement interface have not been considered. Four examples have been solved using the extended mixture rules and the new composite (FGM's) beam elements with varying stiffness. The obtained results are evaluated, discussed and compared. and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

115-132

Source:

Engineering mechanics: international journal for theoretical and applied mechanics | 2008 Volume:15 | Number:2

Harvested from:

CDK

Metadata only:

false