Constitutive Compliance/stiffness Equations Of Viscoelasticity For Resins
Author(s)
M. Klasztorny
Abstract
Constitutive compliance 1 stiffness equations of
viscoelasticity for resins
M. Klasztorny
Institute of Mechanics & Design, Warsaw University of Technology,
Warsaw, PoIand
Abstract
A rheological model HWKIUH for reslns has been developed, taking into
consideration up-to-date results of analys~s of the expermental data. This model
maltes possible simulation short-, medium- and long-term viscoelastic processes
in epoxy or polyester resin, provided that these processes are reversible and of the
first-rank type. Constltutlve compliance equations of viscoelasticity have been
formulated in the shear-bulk version. The shear (distorsional) strains are
simulated with three linearly independent stress-history functions. The bulk
(voluininal) strains are simulated as ideally elastic. An analytic method for
reversal of constitutive compliance equations of viscoelasticity has been
developed. This method uses approximate constitutive stiffness equations of
v~scoelasticity, that simulate time histories of the
Keywords
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