Model
Digital Document
Publisher
Florida Atlantic University
Description
A method of analysis is presented which employs a two-dimensional
plate test to determine the dynamic modulus of elasticity and loss
factor of viscoelastic damping materials. This method is based on an
energy approach to the free vibration of plates. The results derived
from the two-dimensional plate test procedure are compared to values
from conventional beam tests. This comparison indicates that the
material properties determined from the plate test method are in good
agreement with values determined from the beam test method. Thus,
the dynamic modulus of elasticity and loss factor of viscoelastic
damping materials can be determined from either beam or plate tests
and these values can be used in the two-dimensional plate equations
to evaluate the effectiveness of the damping material. In light of
this study, it is suggested that beam tests be performed to derive
viscoelastic material properties because of the simplicity of the
beam test procedure compared to that of the plate test procedure.
plate test to determine the dynamic modulus of elasticity and loss
factor of viscoelastic damping materials. This method is based on an
energy approach to the free vibration of plates. The results derived
from the two-dimensional plate test procedure are compared to values
from conventional beam tests. This comparison indicates that the
material properties determined from the plate test method are in good
agreement with values determined from the beam test method. Thus,
the dynamic modulus of elasticity and loss factor of viscoelastic
damping materials can be determined from either beam or plate tests
and these values can be used in the two-dimensional plate equations
to evaluate the effectiveness of the damping material. In light of
this study, it is suggested that beam tests be performed to derive
viscoelastic material properties because of the simplicity of the
beam test procedure compared to that of the plate test procedure.
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