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Web length creep in wound rolls
(Oklahoma State University, 2019-06)
For convenience, webs are stored in wound rolls. The available web length in a wound roll is one mark of roll quality and a concern for many who process and convert webs. Elastic winding models have proven very precise at ...
Viscoelastic web curl due to storage in wound rolls
(Oklahoma State University, 2019-06)
While bending strains result from any web being wound at a radius of curvature into a roll, these bending strains are largest for the thicker homogeneous webs and laminates. Many webs are viscoelastic on some time scale ...