Sinusoidal shearing is a common method of investigating the dynamic behavior of materials. The rate of deformation and the resulting forces monitored in such oscillatory tests are time dependent. The eccentric rotating disks (ERD) or orthogonal rheometer is a geometry that has the ability to characterize the dynamic properties of materials by employing a deformation that is steady in time with resulting steady forces. This eliminates the need for separating the in-phase and out-of-phase components of the sinusoidal stress monitored in oscillatory tests.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1975

Authors and Affiliations

  • C. W. Macosko
    • 1
  • W. M. Davis
    • 1
  1. 1.Dept. of Chemical Engineering and Materials ScienceUniversity of MinnesotaMinneapolisUSA

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