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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >Elastodynamics of strongly heterogeneous periodic plates using Reissner-Mindlin and Kirchhoff-Love models
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Elastodynamics of strongly heterogeneous periodic plates using Reissner-Mindlin and Kirchhoff-Love models

机译:使用Reissner-Mindlin和Kirchhoff-Love模型的强异质周期板的弹性动力学

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The paper deals with the homogenization of strongly heterogeneous elastic plates satisfying the Reissner-Mindlin or the Kirchhoff-Love hypotheses. We rigorously justify the limit models obtained by the asymptotic analysis which describe the harmonic waves propagation associated with in-plane displacement and transversal deflection modes in these two classical plate structures. Large contrasts in the coefficients of the elastic material components may result in existence of band gaps for the limit Reissner-Mindlin plates while an analogous property is lost for the deflection of the Kirchhoff-Love model. The different dispersion properties of both the limit plates are related to the changing sign of the limit frequency dependent mass density coefficients. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
机译:本文涉及满足Reissner-Mindlin或Kirchhoff-Love假设的强异质弹性板的均质化。我们严格地证明了通过渐近分析获得的极限模型,该极限模型描述了在这两种经典板结构中与面内位移和横向偏转模式相关的谐波传播。弹性材料成分系数的较大差异可能会导致极限Reissner-Mindlin板存在带隙,而Kirchhoff-Love模型的挠度却失去了类似的特性。两个极限板的不同色散特性与极限频率相关的质量密度系数的变化符号有关。 (C)2015 WILEY-VCH Verlag GmbH&Co.KGaA,Weinheim

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