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A two-scale method for identifying mechanical parameters of composite materials with periodic configuration

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Abstract

In this paper, a two-scale method (TSM) is presented for identifying the mechanics parameters such as stiffness and strength of composite materials with small periodic configuration. Firstly, a formulation is briefly given for two-scale analysis (TSA) of the composite materials. And then a two-scale computation formulation of strains and stresses is developed by displacement solution with orthotropic material coefficients for three kinds of such composites structures, i.e., the tension column with a square cross section, the bending cantilever with a rectangular cross section and the torsion column with a circle cross section. The strength formulas for the three kinds of structures are derived and the TSM procedure is discussed. Finally the numerical results of stiffness and strength are presented and compared with experimental data. It shows that the TSM method in this paper is feasible and valid for predicting both the stiffness and the strength of the composite materials with periodic configuration.

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Authors and Affiliations

  1. Academy of Mathematics and System Sciences, Chinese Academy of Sciences, Beijing, 10080, China

    J. Z. Cui & X. G. Yu

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  1. J. Z. Cui
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  2. X. G. Yu
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Correspondence to J. Z. Cui.

Additional information

The project supported by the Special Funds for Major State Basic Research Project (2005CB321704) and the National Natural Science Foundation of China (10590353 and 90405016). The English text was polished by Yunming Chen.

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Cui, J.Z., Yu, X.G. A two-scale method for identifying mechanical parameters of composite materials with periodic configuration. Acta Mech Sin 22, 581–594 (2006). https://doi.org/10.1007/s10409-006-0037-2

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  • DOI: https://doi.org/10.1007/s10409-006-0037-2

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