Numerical Prediction of Equivalent Mechanical Properties of Corrugated Paperboard by 3D Finite Element Analysis

Sewon Chang,Jongmin Park,Hyun Mo Jung

doi:10.3390/app10227973

Sewon Chang, Jongmin Park + Show 1 more

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https://doi.org/10.3390/app10227973

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Abstract

This study is to obtain the equivalent (effective) mechanical properties of corrugated paperboard specifically that is widely applied in Korea for packaging of agricultural products. To analyze the equivalent properties of corrugated paperboard, finite element modeling, measurement of the reaction force, and superposition theory for the unit cell were applied. The stress-strain behavior obtained by applying the calculated equivalent mechanical properties to the simplified model of the corrugated paperboard is compared with experimental results. Nine equivalent mechanical properties governing the orthotropic behavior of corrugated paperboard were analyzed through finite element analysis (FEA). The stress-strain behavior of the corrugated paperboard experimentally showed elastic-plastic behavior, although the equivalent mechanical properties applied to the simplified model were elastic properties based on the theoretical approach, so that the finite element analysis results showed linearity. Therefore, when applying the calculated equivalent mechanical properties through FEA, the characteristics of the section where the strain only increases without the increase in the load due to the flute should be taken into consideration.

Highlights

Corrugated paperboard is a sandwiched engineering structure, whose strength characteristic is in accordance with cross-sectional geometry of flute and material properties of linerboard and corrugating medium [1,2,3,4,5]
In Korea, linerboard and corrugating medium made by mixing imported old corrugated container (OCC) and Korea OCC at a certain ratio have been widely used for making corrugated paperboard
Must avoid the experimental factors in the design of various structures made of corrugated paperboard and to achieve the optimum design

Summary

Introduction

Corrugated paperboard is a sandwiched engineering structure, whose strength characteristic is in accordance with cross-sectional geometry of flute and material properties of linerboard and corrugating medium [1,2,3,4,5]. Corrugated paperboard is an environmental friendly packaging material with high stiffness and strength [2,5,6,7,8]. In Korea, linerboard and corrugating medium made by mixing imported old corrugated container (OCC) and Korea OCC at a certain ratio have been widely used for making corrugated paperboard. The corrugated paperboard with AB-flute double-wall (AB/F-DW) is widely used to maintain the strength of corrugated paperboard. Among corrugated paperboard produced in Korea in 2017, approximately

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