Skip to main content

how to model the damping behavior of viscoelastic passive damper using ANSYS applied to a sandwich beam

Submitted by Alabsi on

 

 dear all, 

How can I model the changing
relationship of shear modulus with frequency for a passive constrained viscoelastic
damper used as part of a composite  sandwich beam which is subject to a walking
excitation using ANSYS ??

Forums
Ask iMechanica
Free Tags
viscoelasticity
ansys
sandwich beams
modelling viscoelastic behaviour and damping using ANSYS
sandwich beams with viscoelastic damping
Alabsi

 This is for a 3-layer sandwich type simply supported beam with core layer sheet viscoelastic type damping, which is Butyl rubber. The beam is subject to walking load excitation.  I do have storage shear data from a dynamic test but ANSYS wont allow non-linear material models (prony series) in a harmonic analysis, so what can i do?
Tue, 01/08/2013 - 19:39 Permalink