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An approximate method for the determination of poisson's complex ratio in harmonic viscoelastic behavior
Author(s) -
Agbossou Amen
Publication year - 1995
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.750160205
Subject(s) - poisson's ratio , materials science , poisson distribution , viscoelasticity , modulus , relaxation (psychology) , composite material , polymer , matrix (chemical analysis) , harmonic , composite number , mathematics , statistics , physics , acoustics , psychology , social psychology
To improve the simulation of viscoelastic behavior of composites, an approximate and incremental method for the determination of Poisson's complex ratio of the polymer matrix is proposed. This method is based on the fact that many polymers exhibit a slight variation of their bulk modulus throughout, at their main relaxation temperature. We examine different parameters that affect the proposed method. It is shown that (i) the Poisson's complex ratio of the matrix and the complex modulus of the composite depend significantly on the initial values of the incremental method and (ii) the Poisson's complex ratio of the matrix allows for the effects of filler content on the magnitude of the mechanical relaxation.