Abstract
Understanding and control of the viscoelastic behavior of
paper web is important for the runnability of modern
paper machines and for the success of converting
processes that contain finite deformations at a high
strain rate. It is well known that tension in a wet and
dry paper web is non-linearly proportional to strain, and
depends on the strain rate. Strain in paper is not
completely recovered after the tensile load is removed,
part of the recovery is timedependent and part is
non-recoverable [1]. A relaxation phase in the
stressstrain cycle makes the behavior more complex and
challenging. The objective of this study was to model the
rheological, time-dependent stress-strain cycle that
includes a relaxation, de-loading and an elastic recovery
phase. The modeling was based on experimental data that
was produced for softwood and hardwood kraft pulps at
different strain rates.
Original language | English |
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Title of host publication | Progress in Paper Physics Seminar 2016 |
Subtitle of host publication | Conference proceedings |
Pages | 221-224 |
Publication status | Published - 2016 |
Event | Progress in Paper Physics Seminar, PPPS 2016 - Darmstadt, Germany Duration: 22 Aug 2016 → 26 Aug 2016 |
Conference
Conference | Progress in Paper Physics Seminar, PPPS 2016 |
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Abbreviated title | PPPS 2016 |
Country/Territory | Germany |
City | Darmstadt |
Period | 22/08/16 → 26/08/16 |
Keywords
- modeling
- prony
- stress relaxation
- stress-strain,
- schapery
- viscoelastic
- wet paper