蜂窝纸板异面动态冲击性能的实验分析

发布时间：2019-02-16 04:22

【摘要】：目的以六边形蜂窝纸板为研究对象,研究厚度对其异面冲击性能的影响。方法通过动态冲击实验来分析接触力、最大接触力、最大位移、最大应变、吸收能与单位厚度冲击能之间的关系,研究厚度为30,40,50和60 mm等4种蜂窝纸板的异面冲击力学性能。结果当冲击能一定时,随着蜂窝纸板厚度的增加,接触力逐渐减小,接触时间逐渐变长;当单位厚度冲击能一定时,厚度与最大位移和吸收能成正比例关系,厚度与接触力、最大接触力、最大应变成反比例关系;对于任一厚度的蜂窝纸板,最大接触力、最大位移、最大应变、吸收能随单位厚度冲击能的增加而增加,且与其呈线性关系。结论当冲击能相同时,不同厚度蜂窝纸板的吸收能几乎相同,可知蜂窝纸板吸收能量的能力与蜂窝纸板的厚度无关,取决于冲击能量的大小。
[Abstract]:Objective to study the effect of thickness on the impact properties of hexagonal honeycomb paperboard. Methods the relationship between contact force, maximum displacement, maximum strain, absorption energy and impact energy per unit thickness of honeycomb paperboard was analyzed by dynamic impact test. The impact mechanical properties of four kinds of honeycomb paperboard with thickness of 30 ~ 4050 and 60 mm were studied. Results when the impact energy is constant, the contact force decreases and the contact time becomes longer with the increase of the thickness of honeycomb paperboard. When the impact energy per unit thickness is constant, the thickness is proportional to the maximum displacement and absorption energy, and the maximum thickness to the contact force should be inversely proportional. For honeycomb paperboard of any thickness, the maximum contact force, maximum displacement, maximum strain and absorption energy increase with the increase of impact energy per unit thickness. Conclusion when the impact energy is the same, the absorption energy of honeycomb paperboard with different thickness is almost the same. The energy absorption ability of honeycomb paperboard is independent of the thickness of honeycomb paperboard, and depends on the impact energy.
【作者单位】：陕西科技大学;
【基金】：国家自然科学基金(51575327)
【分类号】：TB484.1

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