【摘要】 通过压缩试验,研究了预压缩之后蜂窝纸板二次加载时的缓冲性能,并与首次加载时的缓冲性能进行对比分析,结果表明蜂窝纸板预压之后二次加载时没有首次加载时的峰值,直接进入屈服平台,其弹性阶段刚度小于首次加载,缓冲性能优于未预压的蜂窝纸板。更多还原

【Abstract】 The cushion performance of the honeycomb cardboard was studied through the compression experiment, which was load for the second time, and carrying out the cushion performances to contrast with the first compression load. The results showed that the second value of the honeycomb cardboard may not get the peak value as the first time does, and directly enters the yield stage, thus makes that its stiffness less and the cushion is better than unpreload.更多还原