On determination of periodic unit cell for plain weave fabric composites: geometrical modeling of real world materials

Title:

On determination of periodic unit cell for plain weave fabric composites: geometrical modeling of real world materials

Creator:

Skoček, Jan, Zeman, Jan, and Šejnoha, Michal

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:bf6b9804-dcce-4178-b1ab-7934e911b522
uuid:bf6b9804-dcce-4178-b1ab-7934e911b522

Subject:

balanced woven composites, image processing techniques, random microstructure, quantification of microstructure morphology, periodic unit cell, and CAD modeling

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

In this contribution, we present the final outcome of the program initiated in [23], aimed at the determination of a periodic unit cell for plain weave composites with reinforcement imperfections. The emphasis is put on a realistic geometrical description of these material systems utilizing the information provided by in-situ two-dimensional micrographs. Complex geometry of an analyzed composite is approximated using a two-layer periodic unit cell allowing for a mutual shift as well as nesting of individual layers. The parameters of the idealized unit cell are derived via matching appropriate statistical descriptors related to the real material and the idealized geometrical model. Once the optimal geometry of the unit cell is determined, it can be converted to a CAD model and used ot generate the periodic finite element mesh applicable in the subsequent numerical treatment. The individual steps of this procedure are demonstrated in detail for a real world carbon-carbon composite system. and Obsahuje seznam literatury

Language:

English

Rights:

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

Coverage:

249-260

Source:

Engineering mechanics: international journal for theoretical and applied mechanics | 2006 Volume:13 | Number:4

Harvested from:

CDK

Metadata only:

false