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Multiphysics simulation of paper curl due to moisture transport

Title
Multiphysics simulation of paper curl due to moisture transport
Author
윤길호
Keywords
Viscoplasticity; Moisture and heat transport; Paper curl; Porous medium
Issue Date
2020-04
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Citation
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v. 34, no. 5, page. 2075-2083
Abstract
The moisture transport at the fuser nip of printers is postulated to be the main reason for paper curls. However, the fundamental mechanisms of paper curling remain unclear. Observing the moisture transport inside a sheet of paper through experiments is difficult because moisture transport rapidly occurs in a micro-scale thickness. Therefore, developing a theoretical model is crucial to understand the mechanisms of paper curling and to control the curls. In this study, we proposed a multiphysics model that includes the moisture and heat transport and mechanical deformation. The elasticity, plasticity, viscosity, and expansion caused by moisture were considered in the mechanical model to describe the complex material characteristics of paper. The curvature of curls was calculated using an effective two-spring model. The mechanisms of curling in printers and the direction of curls were understood through finite element simulations. The proposed model can qualitatively predict the paper curls observed in experiments. The temperature- and moisture-dependent material properties of paper will be studied in the future to improve the proposed model.
URI
https://link.springer.com/article/10.1007/s12206-020-0429-4https://repository.hanyang.ac.kr/handle/20.500.11754/165398
ISSN
1738-494X; 1976-3824
DOI
10.1007/s12206-020-0429-4
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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