Bacigalupo, Andrea and Gambarotta, Luigi High-continuity multi-scale static and dynamic modelling of periodic materials. In: European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012). Vienna University of Technology, pp. 1719-1731. ISBN 978-3-9503537-0-9 (2012)
Full text not available from this repository.Abstract
The equations of motion of a second-order continuum representative of a classical heterogeneous periodic material are derived through a variational-asymptotic homogenization technique and the overall elastic moduli and the inertial properties are evaluated. The proposed approach is an extension of a dynamic homogenization method developed by the Authors [9] and [10] which has the aim to improve the accuracy of description of the overall inertial terms and of the dispersive functions. This procedure is applied to the case of elastic layered materials with two orthotropic phases having an orthotropy axis parallel to the layers. To evaluate the reliability of the model the dispersion functions here obtained are compared with those from the analytical model applied to heterogeneous material [1, 2], and with those obtained by the Authors in the previous approach [9].
| Item Type: | Book Section |
|---|---|
| Additional Information: | ECCOMAS 2012, 6th European Congress on Computational Methods in Applied Sciences and Engineering, Vienna, Austria, 10–14 September 2012 |
| Uncontrolled Keywords: | Multi-scale second-order homogenization, periodic material, characteristic lengths, dispersive waves |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Research Area: | Computer Science and Applications |
| Depositing User: | Ms T. Iannizzi |
| Date Deposited: | 20 Jan 2015 14:16 |
| Last Modified: | 20 Jan 2015 14:17 |
| URI: | http://eprints.imtlucca.it/id/eprint/2528 |
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