压缩过程中现场发泡包装材料微观结构的有限元分析  

FEM Analysis of Microstructure of Foam-in-place Packaging Material during Compression Process

作　　者：杨婕[1,2] 季忠[2] 赵晓栋[1] 

机构地区：[1]浙江海洋学院,舟山316000 [2]山东大学,济南250061

出　　处：《包装工程》2010年第1期30-33,75,共5页Packaging Engineering

基　　金：国家自然科学基金(50775131)

摘　　要：将现场发泡包装材料微观模型简化为蜂窝模型,利用有限元法分析了其微观结构压缩过程的变形规律,并通过发泡材料的实际压缩试验,证明了有限元模型模拟现场发泡材料微观结构的可行性。通过分析现场发泡材料的发泡化学原料灌注量(PFL值)的改变对其应力应变曲线的影响,证明PFL值大的现场发泡材料的缓冲性能较好。The microstructure of foam-in-place packaging materials was simplified as micro-cellular model. The deformation of the microstructure during compression process was analyzed with finite element method and the feasibility of simulation was proved by actual foam compression tests. The influence of the filled percent of foamed liquid （PFL） Changing value of foam-in-place packaging materials on stress-strain curves was analyzed. The results showed that the bigger PFL value is, the better cushioning performance become.

关 键 词：现场发泡包装材料 微观结构 有限元法 压缩 PFL值 

分 类 号：TS485.1[农业科学—烟草工业] TS487