Abstract
In the present work, the rheological properties of a number of filled elastomers under oscillatory shear conditions are investigated. In both linear and nonlinear regimes, the relationships between moduli (G′ and G″) and strain amplitude (γ0) in response to the frequency change display constant shifts along the vertical direction, leading to a striking superposition of the curves. We show that this superposition via a change of its independent-variables can directly lead to a strain-rate frequency superposition. The underlying principle is that the measured dynamical properties can be separated into a linear viscoelastic frequency-dependent part and a nonlinear strain-dependent part. This frequency-deformation separability is experimentally valid for various rubber compounds that differ widely in the polymer structure, the chemical composition, and the type of the filler as well as the shape, the average size, and the distribution of the particles.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
