Nonlinear dynamic instability analysis of sandwich beams with integral viscoelastic core using different criteria

2018 ◽  
Vol 191 ◽  
pp. 89-99 ◽  
Author(s):  
Matin Latifi ◽  
Mahsa Kharazi ◽  
Hamid Reza Ovesy
Keyword(s):  
Nonlinear Dynamic ◽  
Dynamic Instability ◽  
Sandwich Beams ◽  
Instability Analysis ◽  
Viscoelastic Core

Dynamic instability analysis of general shells reinforced with polymeric matrix and carbon fibers using a coupled IG-SFSM formulation

2021 ◽  
Vol 263 ◽  
pp. 113720
Author(s):  
Mohammad Amin Shahmohammadi ◽  
Mojtaba Azhari ◽  
Mohammad Mehdi Saadatpour ◽  
Hamzeh Salehipour ◽  
Ömer Civalek
Keyword(s):  
Carbon Fibers ◽  
Dynamic Instability ◽  
Polymeric Matrix ◽  
Instability Analysis

Flexural Vibration of Segmented Elastic-Viscoelastic Sandwich Beams

1975 ◽  
Vol 42 (4) ◽  
pp. 897-900
Author(s):  
B. E. Sandman
Keyword(s):  
Steady State ◽  
Numerical Study ◽  
Sandwich Beam ◽  
Flexural Vibration ◽  
Middle Layer ◽  
Resonant Mode ◽  
Sandwich Beams ◽  
Simply Supported ◽  
Viscoelastic Core ◽  
Longitudinal Nonuniformity

A pair of governing differential equations form the basis for the study of steady-state forced vibration of a sandwich beam with longitudinal nonuniformity in the stiffness and mass of the middle layer. The spatial solution for simply supported boundary conditions is obtained by a Fourier analysis of both material and kinematic variations. The solution is utilized in the numerical study of a sandwich beam with a segmented configuration of elastic and viscoelastic core materials. The results exemplify a tuned configuration of core segments for optimum damping of the first resonant mode.

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