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논문 기본 정보

자료유형
학술저널
저자정보
Park, Jong Min (Department of Bioindustrial Machinery Engineering, Pusan National University) Kim, Ghi Seok (Department of Biosystems and Biomaterials Engineering, Seoul National University) Kwon, Soon Hong (Department of Bioindustrial Machinery Engineering, Pusan National University) Chung, Sung Won (Department of Bioindustrial Machinery Engineering, Pusan National University) Kwon, Soon Goo (Department of Bioindustrial Machinery Engineering, Pusan National University) Choi, Won Sik (Department of Bioindustrial Machinery Engineering, Pusan National University) Kim, Jong Soon (Department of Bioindustrial Machinery Engineering, Pusan National University)
저널정보
한국농업기계학회 바이오시스템공학(구 한국농업기계학회지) 바이오시스템공학 제41권 제3호
발행연도
2016.1
수록면
221 - 231 (11page)

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Purpose: The objective of this study was to develop cushion curves models and analyze the cushioning performance of multi-layered corrugated structures (MLCS) using a method based on dynamic stress-energy relationship. Methods: Cushion tests were performed for developing cushion curve models under 12 combinations of test conditions: three different combinations of drop height, material thickness, and static stress for each of four levels of energy densities between 15 and $60kJ/m^3$. Results: Dynamic stress and energy density for MLCS followed an exponential relationship. Cushion curve models were developed as a function of drop height, material thickness, and static stress for different paperboards and flute types. Generally, the differences between the shock pulse (transmitted peak acceleration) and cushion curve (position and width of belly portion) for the first drop and the averaged second to fifth drop were greater than those for polymer-based cushioning materials. Accordingly, the loss of cushioning performance of MLCS was estimated to be greater than that of polymer-based cushioning materials with the increasing number of drops. The position of the belly of the cushion curve of MLCS tends to shift upward to the left with increasing drop height, and the belly portion became narrower. However, depending on material thickness, under identical conditions, the cushion curve of MLCS showed an opposite tendency. Conclusions: The results of this study can be useful for environment-friendly and optimal packaging design as shock and vibrations are the key factors in cushioning packaging design.

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