%0 Journal Article
%A Lorenz, Boris
%A Pyckhout-Hintzen, Wim
%A Persson, Bo
%T Master curve of viscoelastic solid: using causality to determine the optimal shifting procedure
%J Polymer
%V 55
%N 2
%@ 0032-3861
%C Oxford
%I Elsevier Science
%M FZJ-2014-00507
%P 566-571
%D 2014
%X Viscoelastic solids such as rubber exhibit a complex elastic modulus E(ω), which depends on the frequency ω of the applied stress or strain. The modulus E(ω) can often be determined in a wide frequency range by performing measurements in a limited frequency range for many different temperatures, and then shift the frequency segments horizontally along the frequency axis to obtain a continuous master curve. We show that one can use the spectral representation of E(ω) (or 1/E(ω)), which obeys causality, to determine the optimal shifting procedure, and to test the accuracy of the measured data and the calculated master curve.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000331154700014
%R 10.1016/j.polymer.2013.12.033
%U https://juser.fz-juelich.de/record/150451