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The effect of plastic pails on pallet deflection and pressure distribution for stringer class wooden pallets
Packaging Technology and Science ( IF 2.8 ) Pub Date : 2021-04-06 , DOI: 10.1002/pts.2571 Mary Paz Alvarez Valverde 1 , Laszlo Horvath 1 , John Bouldin 1 , Farhad Shahabi 2
Packaging Technology and Science ( IF 2.8 ) Pub Date : 2021-04-06 , DOI: 10.1002/pts.2571 Mary Paz Alvarez Valverde 1 , Laszlo Horvath 1 , John Bouldin 1 , Farhad Shahabi 2
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There are 513 million new wooden pallets produced every year in the United States, most of which are purposely built for specific applications. Currently, most wooden pallets are designed with the assumption that they will carry a uniformly distributed, flexible load. However, it has been observed by many researchers that most loads carried by pallets are discrete loads where the interactions between packages cause pressure redistribution defined as load bridging. The load bridging phenomenon has been extensively studied for corrugated boxes, and it has been found that the deflection of the pallet is highly dependent on the number, size and type of corrugated boxes and the design of the pallet used. Although pails are an essential packaging solution used to transport smaller amounts of liquids (1–40 L), there is a lack of understanding about the effect of load bridging on unit loads of pails. The objective of this research was to understand the differences in pallet bending and pressure distribution across the top of the pallet when pallets are loaded with plastic pails compared with a flexible airbag. The results revealed that pallets deflect 32%–89% less when loaded with plastic pails. The load predominantly distributes down the bottom perimeter of the pail, indicating that the design of the bottom of the pail could have a major effect on pallet performance. The effect of plastic pails was dependent on pallet design, indicating that the stiffness of a pallet could have a major effect on load bridging experienced by plastic pails.
中文翻译：
塑料桶对纵梁类木托盘托盘挠度和压力分布的影响
美国每年生产 5.13 亿个新木托盘，其中大部分是专门为特定应用而制造的。目前，大多数木托盘的设计假设它们将承载均匀分布的灵活负载。然而，许多研究人员观察到，托盘承载的大多数负载是离散负载，其中包装之间的相互作用导致压力重新分布，定义为负载桥接。瓦楞纸箱的负载桥接现象已被广泛研究，并且发现托盘的挠度高度依赖于瓦楞纸箱的数量、尺寸和类型以及所用托盘的设计。虽然桶是用于运输少量液体（1-40 升）的基本包装解决方案，对负载桥接对桶的单位负载的影响缺乏了解。本研究的目的是了解与柔性安全气囊相比，当托盘装有塑料桶时，托盘弯曲度和托盘顶部压力分布的差异。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。本研究的目的是了解与柔性安全气囊相比，当托盘装有塑料桶时，托盘弯曲和托盘顶部压力分布的差异。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。本研究的目的是了解与柔性安全气囊相比，当托盘装有塑料桶时，托盘弯曲和托盘顶部压力分布的差异。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。
更新日期：2021-06-03
中文翻译：
塑料桶对纵梁类木托盘托盘挠度和压力分布的影响
美国每年生产 5.13 亿个新木托盘，其中大部分是专门为特定应用而制造的。目前，大多数木托盘的设计假设它们将承载均匀分布的灵活负载。然而，许多研究人员观察到，托盘承载的大多数负载是离散负载，其中包装之间的相互作用导致压力重新分布，定义为负载桥接。瓦楞纸箱的负载桥接现象已被广泛研究，并且发现托盘的挠度高度依赖于瓦楞纸箱的数量、尺寸和类型以及所用托盘的设计。虽然桶是用于运输少量液体（1-40 升）的基本包装解决方案，对负载桥接对桶的单位负载的影响缺乏了解。本研究的目的是了解与柔性安全气囊相比，当托盘装有塑料桶时，托盘弯曲度和托盘顶部压力分布的差异。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。本研究的目的是了解与柔性安全气囊相比，当托盘装有塑料桶时，托盘弯曲和托盘顶部压力分布的差异。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。本研究的目的是了解与柔性安全气囊相比，当托盘装有塑料桶时，托盘弯曲和托盘顶部压力分布的差异。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。结果表明，装载塑料桶时，托盘的偏转减少 32%–89%。负载主要分布在桶的底部周边，表明桶底部的设计可能对托盘性能产生重大影响。塑料桶的效果取决于托盘设计，表明托盘的刚度可能对塑料桶的负载桥接产生重大影响。
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