Constructing Any Cushion Curve of Cushioning Material via a Single Impact

WANG Siyu; SUN Deqiang; WANG Can; KE Xianpeng; LYU Jiaxiang; HE Zhenyang

doi:10.19554/j.cnki.1001-3563.2025.23.032

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Packaging Engineering ›› 2025, Vol. 46 ›› Issue (23) : 305-313. DOI: 10.19554/j.cnki.1001-3563.2025.23.032

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Constructing Any Cushion Curve of Cushioning Material via a Single Impact

WANG Siyu¹, SUN Deqiang^2,*, WANG Can², KE Xianpeng², LYU Jiaxiang², HE Zhenyang²

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Abstract

The work aims to explore a method for constructing any cushion curve of a cushioning material through a single impact, to overcome the numerous drawbacks in determining the product fragility-static stress cushion curves of cushioning materials in accordance with relevant testing standards. Based on the existing cushioning theory of materials, with the maximum energy absorption per unit volume and the maximum stress of the cushioning pad during the impact process as variables, the functional relationships between both variables and their influencing factors were analyzed. For a specific cushioning material, its maximum energy absorption per unit volume relied on its maximum stress by a definite functional relationship which could be linked to its stress-strain curve under a single dynamic impact. From such a theoretical basis, a method was proposed to construct any cushion curve of a cushioning material under any combination of drop height and cushion thickness determined by the product distribution environment via a single impact, and the detailed implementation steps were introduced. For a certain foam cushioning material, the cushion curve constructed in this method is compared with the corresponding tested results. The good consistency between them proves the reliability of the proposed construction method.

Key words

cushion curves / single impact / theoretical basis / implementation steps / verification of reliability

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WANG Siyu, SUN Deqiang, WANG Can, KE Xianpeng, LYU Jiaxiang, HE Zhenyang. Constructing Any Cushion Curve of Cushioning Material via a Single Impact[J]. Packaging Engineering. 2025, 46(23): 305-313 https://doi.org/10.19554/j.cnki.1001-3563.2025.23.032

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