A generalized layerwise finite element for multi-layer damping treatments

• Type: Article in International Scientific Journal
• Date: 2006

Authors

Moreira, RAS (Author) Other; Rodrigues, JD (Author) Other; Ferreira, AJM (Author) FEUP

Journal

Title: Computational Mechanics

Vol. 37

Pages: 426-444

ISSN: 0178-7675

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 60 Citations

ISI Web of Science

Scopus - 74 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-004-MCE

DOI: 10.1007/s00466-005-0714-1

Abstract (EN): This paper presents a 4-node facet type quadrangular shell finite element, based on a layerwise theory, developed for dynamic modelling of laminated structures with viscoelastic damping layers. The bending stiffness of the facet shell element is based on the Reissner-Mindlin assumptions and the plate theory is enriched with a shear locking protection adopting the MITC approach. The membrane component is corrected by using incompatible quadratic modes and the drilling degrees of freedom are introduced through a fictitious stiffness stabilization matrix. Linear static tests, using several pathological tests, showed good and convergent results. Dynamic analysis evaluation is provided by using two eigenproblems with exact analytical solution, as well as a conical sandwich shell with a closed-form analytical solution and a semi-analytical ring finite element solution. The applicability of the proposed finite element to viscoelastic core sandwich plates is assessed through experimental validation.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 19