| 摘要: |
| 目的 研究非均布载荷下瓦楞纸箱变形与抗压强度的变化规律。方法 对2种不同类型的纸箱进行局部抗压试验。首先对纸箱的不同箱面位置进行局部抗压试验，然后对纸箱的同一箱面位置进行变加载面积的抗压试验，最后分析试验数据。结果 在确定加载面积的情况下，纸箱中心位置抗压强度最差，周边位置抗压强度最高；对于长方形纸箱面，其短边位置的抗压强度大于长边位置的抗压强度。在确定纸箱加载位置的情况下，加载面积越大，纸箱抗压强度越大；随着加载面积的增大，纸箱的抗压强度呈指数型增加。结论 非均布载荷对纸箱抗压强度影响较大。当纸箱箱面中部承受非均布载荷时，纸箱垂直方向上会产生较大的变形，因此在瓦楞纸箱的转运过程中应尽量避免承受因局部或交错堆码产生的非均布载荷。 |
| 关键词: 瓦楞纸箱 非均布载荷 抗压强度 |
| DOI： |
| 分类号:TB484.1; TB485.3 |
| 基金项目:国家自然科学基金（51205167）；江苏省自然科学基金（BK20151128） |
|
| Load-carrying Property of Corrugated Cartons under Non-uniform Load |
|
LYU Wei-liang1, WANG Jun2,3
|
|
1.Jiangnan University, Wuxi 214122, China;2.1.Jiangnan University, Wuxi 214122, China;3.2.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi 214122, China
|
| Abstract: |
| It aims to study varying pattern of deformation and compressive strength of corrugated cartons under non- uniform load. Local compression tests were firstly carried out to two different types of cartons, and then compressive tests with variable loading area were carried out to the same position of cartons. Finally, the experiment data was analyzed. Provided that the loading area was constant, compressive strength in the center of cartons was the worst while that in edges was the best. For rectangular cartons, the compressive strength in short edges was greater than that in long edges. Provided that the loading position of cartons was constant, the larger the loading area was, the greater the compressive strength of cartons was. With the increase of the loading area, the compressive strength of cartons increased exponentially. Non-uniform load had great influence on the compressive strength of cartons. Substantial deformation will be present in vertical direction of cartons when central section of the cartons carried non-uniform load. Therefore, corrugated cartons should be free from non-uniform load caused by local or staggered stacking during transshipment. |
| Key words: corrugated cartons non-uniform load compressive strength |
渝公网安备 50010702501716号