瓦楞夹层结构动态力学性能评估

王冬梅 柏子游龚户祥 张海燕

振动与冲击 ›› 2014, Vol. 33 ›› Issue (3) : 94-97.

PDF(949 KB)
PDF(949 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (3) : 94-97.
论文

瓦楞夹层结构动态力学性能评估

  • 王冬梅1 柏子游1龚户祥2 张海燕2

作者信息 +

Evaluation of the Mechanical Property of Corrugated Sandwich Structure

  • WANG Dongmei1 BAI Ziyou1 GONG Huxiang2 ZHANG Haiyan2
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文章历史 +

摘要

以典型的瓦楞夹层结构--瓦楞纸板为例,本文研究了不同应变率下的A、B、C、E型多层瓦楞纸板的力学性能。结果表明由于变形机制的不同造成动态平台应力值比静态平台应力值有明显的增加。本文采用中等应变率下评估动态应力的Cowper-Symonds方程与试验数据相结合,构建了一个综合考虑结构参数和应变率效应的多层瓦楞纸板的动态平台应力的预测方程。结果表明:随着应变率的增加,多层瓦楞纸板的平台应力明显增加;经过标准化后的方程能够较全面的用于多层瓦楞纸板的动态平台应力的预测,同时,该方程对于其他材质的瓦楞夹层结构的力学性能的研究有重要的参考价值。

Abstract

The mechanical property of MLCP(short for multilayer corrugated paperboard) with different flutes which exhibit the typical corrugated sandwich structure under various strain rates is investigated in this paper. Comparing with the static flatwise compression, the dynamic plateau stress of MLCP increases apparently due to the different mechanism of deformation during the impact process. The method of Cowper-Symonds under intermediate strain rate is utilized to construct a model in which the flute configuration and strain rate are concerned with the corporation of theory and experimental data. As a result, the plateau stress of MLCP will be on a rise with the increasing of strain rate. The prediction of the dynamic plateau stress of MLCP from the model proposed after being normalized by the elastic modulus of the corrugated medium shows certain accuracy. Meanwhile, the normalized model is valuable to the investigation of mechanical properties of other materials of corrugated sandwich structure.



关键词

瓦楞夹层结构 动态力学性能 评估方程

Key words

corrugated sandwich structure / Dynamic mechanical property / Evaluation.

引用本文

导出引用
王冬梅 柏子游龚户祥 张海燕 . 瓦楞夹层结构动态力学性能评估[J]. 振动与冲击, 2014, 33(3): 94-97
WANG Dongmei BAI Ziyou GONG Huxiang ZHANG Haiyan. Evaluation of the Mechanical Property of Corrugated Sandwich Structure[J]. Journal of Vibration and Shock, 2014, 33(3): 94-97

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