Finite element modeling of creasing in corrugated paperboards

Name: Anucha Saysroy

Organization : King Mongkut's University of Technology North Bangkok. Department of Mechanical and Aerospace Engineering

Name: Petch Jearranaisilawong

Organization : King Mongkut's University of Technology North Bangkok. Department of Mechanical and Aerospace Engineering

Email : petchj@kmutnb.ac.th

keyword: Creasing process

ThaSH: Paper -- Mechanical properties

ThaSH: Corrugated paperboard

ThaSH: Finite element method

ThaSH: Paper work

Abstract: The purpose of this study is to understand mechanical response of corrugated paperboards under creasing process. Paperboards are composite materials consisting of layers of corrugating medium, each sandwiched between a pair of liners. In the manufacturing process, a pattern of crease (or score) lines are pressed onto the surface of paperboards to facilitate folding and bending. Yet, over-pressing of the crease lines can cause cracks on the liners or severe deformation of the corrugating medium, while underpressing can lead to insufficient depth for folding. To determine an optimal creasing depth for folding, the mechanics of creasing was analyzed in a set of numerical simulations using a commercial finite element software ABAQUS. Geometrical features of paperboards, such as liners and medium were modeled in details. Each layer of paper was modeled by an orthotropic elasto-plastic material with a plastic potential whose parameters were obtained from relevant experiments. The analysis focuses on mechanics of creasing at three distinct positions on the fluting pattern of corrugating medium. Creasing between two peaks of the fluting produces the highest tensile stress, which leads to permanent damage along the crease line on the top liner. On the other hand, applying a creasing pattern on top of the peaks of fluting leads to buckling of the corrugating medium. The proposed simulations shred lights into the mechanics of crease line that can be used for improving crease pattern and for reducing cracks along the creasing line in the manufacturing process.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2012

Modified: 2026-01-07

Issued: 2026-01-07

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BibliograpyCitation : ใน มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี คณะวิศวกรรมศาสตร์. การประชุมวิชาการเครือข่ายวิศวกรรมเครื่องกลแห่งประเทศไทย ครั้งที่ 26 (ME-NETT 2012) (CST2010). กรุงเทพฯ : มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

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