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1 2016

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On Effective Young’s Modulus and Poisson’s Ratio of the Auxetic Thermoelastic Material

Maruszewski B. T., Drzewiecki A., Starosta R.

Computational Methods in Science and Technology

2016

Vol. 22, No. 4

233--237

The paper deals with an influence of the excitation frequency and the dimensions of a free supported thermoelastic plate on the effective Poisson’s ratio and the effective Young’s modulus. Both of these parameters are not, in such a situation, the elastic material constants. The considered thermoelastic problem has been modelled within the extended thermodynamical model. Therefore, the above effective elastic coefficients are also dependent on the thermal relaxation time. The numerical analysis of those coefficients vs. excitation frequency both for normal and auxetic plates have been presented.