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http://dx.doi.org/10.21289/KSIC.2020.23.5.843

Optimum Packaging Design of Packaging Tray and Cushion Pad of Korean Pears for Exporting using FEA Simulation  

Choi, Dong-Soo (Postharvest Engineering Division, National Institute of Agricultural Sciences)
Son, Jae-Yong (Postharvest Engineering Division, National Institute of Agricultural Sciences)
Kim, Jin-Se (Postharvest Engineering Division, National Institute of Agricultural Sciences)
Kim, Yong-Hoon (Postharvest Engineering Division, National Institute of Agricultural Sciences)
Park, Chun-Wan (Postharvest Engineering Division, National Institute of Agricultural Sciences)
Jung, Hyun-Mo (Dept. of Logistic Packaging, Kyongbuk Science College)
Hwang, Sung-Wook (Dept. of Chemical Engineering, Keimyung University)
Publication Information
Journal of the Korean Society of Industry Convergence / v.23, no.5, 2020 , pp. 843-852 More about this Journal
Abstract
Among the many packaging materials used in cushion packaging, there is a lack of optimum design for packaging trays and cushion pads used in pear packaging for export and domestic distribution. It causes over-packaging due to excessive material input, and can be solved by applying various parameters needed to optimize the design of the packaging tray and cushion pad considering the packaging material and the number of pears in the box. In the case of a cushion pad for pears, the economic efficiency of material and thickness should be considered. Therefore, it is possible to design a packaging tray and cushion pad depending on eco-friendly packaging materials (PLA, PET) used by applying appropriate design parameters. The static characteristics of the materials used for the packaging of pears were analyzed using FEA (finite element analysis) simulation technique to derive the optimal design parameters. In this study, we analyzed the contact stress and deformation of PET, PLA tray (0.1, 0.5 1.0, 1.5 and 2 mm) and PET foam (2.0, 3 .0 and 4.0 mm) with pears to derive appropriate cushion packaging design factors. The contact stress between the pear and PET foam pad placed on PLA, PET trays were simulated by FEA considering the bioyield strength (192.54±28 kPa) of the pears and safety factor (5) of packaging design, which is the criterion of damage to the pears. For the combination of PET tray and PET foam buffer pad, the thickness of the PET foam is at least 3 mm, the thickness of the PET foam is at least 1.0 mm, the thickness of the foam is at least 2 mm, and if the thickness of the PET tray is at least 1.5 mm, the thickness of the foam is at least 1 mm, suitable for the packaging design. In addition, for the combination of PLA tray and PET foam pad, the thickness of the PET foam was not less than 2 mm if the thickness of the PLA tray was 0.5 mm, and 1 mm or more if the thickness of the PLA tray was not less than 1.0 mm, the thickness of the PET foam was suitable for the packaging design.
Keywords
Pear; PET tray; PLA tray; PET foam; Packaging; Contact stress; Contact deformation; FEA;
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