Optimal Measurement Placement for Material Parameter Identification of Orthotropic Composites by the Finite Element Method

Abstract:

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An algorithm of the optimal measurement placement is proposed for the material parameter identification of two-dimensional orthotropic composites, which is modeled by the finite element. From the analysis of the system sensitivity matrix of the parameter identification processes using the Levenberg-Marquardt method, A-optimality criterion related with the Fisher Information Matrix (FIM) is selected for the criterion of the optimal measurement placement. Thus, the algorithm for selecting the optimal measurement placement can be constructed. A numerical example is given to demonstrate the effectiveness of the proposed algorithm. The example reveals that the measurement placement has a significant influence on the identification results.

Info:

Periodical:

Edited by:

Xuejun Zhou

Pages:

1723-1728

DOI:

10.4028/www.scientific.net/AMM.94-96.1723

Citation:

L. X. Huang et al., "Optimal Measurement Placement for Material Parameter Identification of Orthotropic Composites by the Finite Element Method", Applied Mechanics and Materials, Vols. 94-96, pp. 1723-1728, 2011

Online since:

September 2011

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Price:

$35.00

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