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Forced harmonic response of viscoelastic sandwich beams by a reduction method

Abstract : The aim of this article is to develop a reduction method to determine the forced harmonic response of viscoelastic sandwich structures at a reasonable computational cost. The numerical resolution is based on the asymptotic numerical method. This type of problem is complex, and its number of degrees of freedom is double the number of the undamped structure, leading to a high computational time. To address the problem, three reduction methods are evaluated, which differ from the projection operator. Numerical tests have been performed in the case of cantilever sandwich beams. The comparison of the results obtained by the reduction order resolution with those given by the full order resolution shows both a good agreement and a significant reduction in computational cost.
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Faiza Boumediene, El Mostafa Daya, Jean-Marc Cadou, Laëtitia Duigou. Forced harmonic response of viscoelastic sandwich beams by a reduction method. Mechanics of Advanced Materials and Structures, Taylor & Francis, 2016, 23 (11), pp.1290-1299. ⟨10.1080/15376494.2015.1068408⟩. ⟨hal-01514672⟩



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