Evaluation of Elastic and Creep Properties of Perforated Materials by Finite Element Analysis Imposing Periodic Boundary Conditions

Abstract:

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In the analysis of materials containing regularly placed in-homogeneities, the evaluation of homogenized properties is an important issue. Common procedure for the homogenization is to define a unit cell, load it somehow, and investigate its structural response. A periodic variation of strain appears when the periodically heterogeneous material is under uniform macro-stress, and therefore, the implementation of this characteristic behavior would be essential to the material characterization based on a unit cell analysis. With the method proposed here, conventional finite element analysis tools can be used with no modification, and it is applicable to the skew-arrayed in-homogeneity problems. The orthotropic elastic and creep properties of materials with voids are examined, and the accuracy and effectiveness are demonstrated.

Info:

Periodical:

Key Engineering Materials (Volumes 297-300)

Edited by:

Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim

Pages:

2233-2239

DOI:

10.4028/www.scientific.net/KEM.297-300.2233

Citation:

I. S. Chung and Y. S. Chai, "Evaluation of Elastic and Creep Properties of Perforated Materials by Finite Element Analysis Imposing Periodic Boundary Conditions", Key Engineering Materials, Vols. 297-300, pp. 2233-2239, 2005

Online since:

November 2005

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Price:

$35.00

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