基于一次冲击构建缓冲材料任一缓冲曲线

王思宇; 孙德强; 王灿; 柯贤朋; 吕嘉祥; 贺镇阳

doi:10.19554/j.cnki.1001-3563.2025.23.032

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包装工程（技术栏目） ›› 2025, Vol. 46 ›› Issue (23) : 305-313. DOI: 10.19554/j.cnki.1001-3563.2025.23.032

装备防护

基于一次冲击构建缓冲材料任一缓冲曲线

王思宇¹, 孙德强^2,*, 王灿², 柯贤朋², 吕嘉祥², 贺镇阳²

作者信息 +

Constructing Any Cushion Curve of Cushioning Material via a Single Impact

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

Author information +

文章历史 +

摘要

目的克服缓冲材料产品脆值-静应力缓冲曲线测定实验标准存在的诸多弊端,探究基于一次冲击来构建缓冲材料任一缓冲曲线的方法。方法在材料缓冲理论基础上,将冲击过程中缓冲衬垫的最大单位体积能量吸收和最大应力视为变量,分析两者与其影响因素之间的函数关系式。结果一定缓冲材料的最大单位体积能量吸收和最大应力满足确定的函数关系,可与该缓冲材料一次动态冲击的应力-应变曲线建立联系,由此理论依据提出了基于缓冲材料的一次冲击构建其通常产品流通环境决定的任一跌落高度和衬垫厚度组合下缓冲曲线的具体实施步骤。结论针对一泡沫材料,将利用该缓冲曲线构建方法预测的任一缓冲曲线与相应缓冲曲线上实验测量结果进行对比分析,两者良好的吻合性证明了该方法的可靠性。

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.

导出引用

王思宇, 孙德强, 王灿, 柯贤朋, 吕嘉祥, 贺镇阳. 基于一次冲击构建缓冲材料任一缓冲曲线[J]. 包装工程. 2025, 46(23): 305-313 https://doi.org/10.19554/j.cnki.1001-3563.2025.23.032

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

中图分类号： TB485.1

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基金

国家自然科学基金（51575327）; 陕西省科技厅陕西省创新能力支撑计划项目专业检验检测平台（2025JC-GXPT-022）; 陕西省科技厅中试基地建设项目（2023ZSJD-06）; 陕西省市场监督管理局重点科技研发项目（2025ZDKY06）; 陕西省教育厅重点实验室及基地项目（16JS014）