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| Titel: |
Variational Statements and Computational Models for MultiField Problems and Multilayered Structures |
| Auteur: |
Carrera, E. Brischetto, S. Nali, P. |
| Verschenen in: |
Mechanics of advanced materials & structures |
| Paginering: | Jaargang 15 (2008) nr. 3-4 pagina's 182-198 |
| Jaar: |
2008-03 |
| Inhoud: |
This work deals with classical and mixed variational statements for the analysis of layered structures under the effect of four different fields: mechanical, thermal, electrical and magnetic. Constitutive equations, in terms of coupled mechanical-thermal-electrical-magnetic filed variables, are obtained on the basis of a thermodynamics approach. The Principle of Virtual Displacements (PVD) and the Reissner's Mixed Variational Theorem (RMVT) are employed. The latter permits interlaminar variables, such as transverse stresses, transverse electrical displacements, etc. to be assumed “a priori.” A number of particular cases of the considered variational statements are proposed. A new condensed notation is introduced into the Unified Formulation (UF) framework, which leads to governing equations and finite element matrices in terms of a few fundamental nuclei. The Finite Element (FE) case for multilayerd plates has been addressed. Variable kinematics, as well as layer-wise and equivalent single layer descriptions have been implemented for the considered FEs according to UF. A few results show the effectiveness of the proposed approach. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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