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INTERRELATIONSHIP BETWEEN THE TRANSIENT FUNCTIONS OF BOLOGNA USING FRIEDRICH AND HEYMANN THEORY
Author(s) -
BRUNO MARIA,
MORESI MAURO
Publication year - 2005
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.2005.00001.x
Subject(s) - viscoelasticity , rheology , relaxation (psychology) , transient (computer programming) , poisson distribution , mathematics , materials science , physics , thermodynamics , statistics , computer science , psychology , social psychology , operating system
ABSTRACT The rheological behavior of a commercial high‐quality bologna in the time and frequency domain was assessed by quasi‐static (uniaxial compression and compressive stress relaxation) and oscillatory dynamic tests. Both tests gave almost the same range (4–9%) of apparent linear viscoelasticity. The use of the Friedrich and Heymann model allowed the transient responses of the protein network of bologna to be characterized by relaxation functions having the same structural form and empiric parameters independent of the experimental test provided that the applied strains were kept within the elastic and proportional limit. Their linear interrelation was also checked using an independent estimate of the Poisson's ratio via the NOL test.