Abstract
Abstract Two polymer composite roll cover materials were studied using dynamic compression tests. The main focus was determination of viscoelastic properties of the materials and development of mathematical models to describe the behavior of these materials in the contact area between two rolls. The compression tests were conducted using short rise time pulses with different durations in servohydraulic materials testing machines. In the modeling, combinations of standard elastic and viscoelastic elements were used together with the Boltzmann superposition principle. A simple spring-dashpot model was found to fit sufficiently to the experimental data with relaxation (retardation) times ranging from a few milliseconds in transient loading tests to tens of hours in static compression tests
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