Please use this identifier to cite or link to this item:
Author(s): C. M. A. Vasques
R. A. S. Moreira
J. Dias Rodrigues
Title: Experimental identification of GHM and ADF parameters for viscoelastic damping modeling
Issue Date: 2006
Abstract: The implementation of the Golla-Hughes-McTavish (GHM) and Anelastic Displacement Fields (ADF) models in a general finite element (FE) model with viscoelastic damping is presented and discussed in this paper. Additionally, a direct frequency analysis (DFA) is also described and employed. A methodology to identify the complex shear modulus of the viscoelastic materials is described. The identified complex shear modulus of the viscoelastic material 3M ISD112 is curve-fitted in order to obtain the modeling parameters of the GHM and ADF models. A sandwich plate with a viscoelastic core and elastic skins is analyzed. Measured and predicted frequency response functions (FRFs) are compared with the purpose of assessing the performance of the presented damping models. The analysis allows to asses the validity of the methodology to determine the frequency dependent complex modulus, the GHM and ADF parameters identification and the outcomes and drawbacks of the DFA, GHM and ADF viscoelastic damping modeling strategies.
Subject: Engenharia mecânica, Engenharia mecânica
Mechanical engineering, Mechanical engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia mecânica
Engineering and technology::Mechanical engineering
Source: ECCM 2006 - III European Conference on Computational Mechanics. Solids, Structures and Coupled Problems in Engineering
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

Files in This Item:
File Description SizeFormat 
70789.pdf2.16 MBAdobe PDFThumbnail

This item is licensed under a Creative Commons License Creative Commons