非均布载荷下瓦楞纸箱的承载性能

发布时间：2019-07-10 10:10

【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。
[Abstract]:Objective To study the variation of the deformation and compressive strength of corrugated paper box under non-uniform load. Methods Two different types of cartons were tested for local compression. Firstly, the local pressure-resistant test is carried out on different box surface positions of the paper box, and then the pressure resistance test of the variable loading area is carried out on the position of the same box surface of the paper box, and the test data is finally analyzed. As a result, in the case of determining the loading area, the compressive strength of the center of the carton is the worst, and the compressive strength of the peripheral position is the highest; for the rectangular carton face, the compressive strength of the short side position of the carton is greater than the compressive strength of the long side position. In the case of determining the loading position of the carton, the larger the loading area, the greater the compressive strength of the carton; as the loading area increases, the compressive strength of the carton increases exponentially. Conclusion The influence of non-uniform load on the compressive strength of the carton is great. When the middle part of the box surface of the carton is subjected to a non-uniform load, a large deformation is generated in the vertical direction of the paper box, so that the non-uniform load caused by the local or staggered stacking codes should be avoided in the transport process of the corrugated paper box.
【作者单位】：江南大学;江苏省先进食品装备制造技术重点实验室;
【基金】：国家自然科学基金(51205167) 江苏省自然科学基金(BK20151128)
【分类号】：TB484.1

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