矩形薄板在面内撞击下动力屈曲的实验研究

韩大伟,王安稳

振动与冲击 ›› 2015, Vol. 34 ›› Issue (12) : 90-93.

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PDF(1181 KB)
振动与冲击 ›› 2015, Vol. 34 ›› Issue (12) : 90-93.
论文

矩形薄板在面内撞击下动力屈曲的实验研究

  • 韩大伟,王安稳
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Experimental investigation into dynamic buckling of thin rectangular plates subjected to in-plane impact

  • HAN Da-wei, WANG An-wen
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文章历史 +

摘要

利用Hopkinson压杆系统对矩形薄板在面内撞击下的动力屈曲进行了实验研究。结果表明矩形薄板存在屈曲后强度,在屈曲发生后面内载荷可以继续增加,通过记录屈曲发生的时间求得临界屈曲长度,并对实验模型进行了理论分析。对比分析结果表明,当压应力波向前传播一定距离后矩形薄板发生局部屈曲,得到的临界屈曲长度与理论计算结果吻合良好。

Abstract

The dynamic buckling of thin rectangular plates subjected to in-plane impact is investigated in this paper experimentally. The result indicates that the load in the plate can increase after buckling and postbuckling strength exists in the plate. The critical buckling length of the thin rectangular plate is obtained by recording the buckling time. The experimental model is also studied with analytical method. By comparing this two kinds of results we know that partial buckling occurs in the thin rectangular plate when the compression wave propagates a certain distance. The critical buckling length obtained in the experiment shows reasonable agreement with the analytical calculation result.

关键词

动力屈曲 / 矩形薄板 / 临界屈曲长度 / Hopkinson压杆 / 实验研究

Key words

dynamic buckling;thin rectangular plate / critical buckling length / Hopkinson bar / experimental investigation

引用本文

导出引用
韩大伟,王安稳. 矩形薄板在面内撞击下动力屈曲的实验研究[J]. 振动与冲击, 2015, 34(12): 90-93
HAN Da-wei, WANG An-wen. Experimental investigation into dynamic buckling of thin rectangular plates subjected to in-plane impact[J]. Journal of Vibration and Shock, 2015, 34(12): 90-93

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