近距爆炸作用下叠层复合夹芯板局部层裂破坏的理论研究

唐廷;韦灼彬 朱锡 侯海量

振动与冲击 ›› 2013, Vol. 32 ›› Issue (24) : 15-21.

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PDF(1721 KB)
振动与冲击 ›› 2013, Vol. 32 ›› Issue (24) : 15-21.
论文

近距爆炸作用下叠层复合夹芯板局部层裂破坏的理论研究

  • 唐廷1,2 韦灼彬1 朱锡2 侯海量2

作者信息 +

Theoretical study on local spalling fracture of laminated composite sandwich plate subjected closely blast loading

  • TANG Ting1,2, WEI Zhuo-bin1, ZHU Xi2, HOU Hai-liang2
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文章历史 +

摘要

运用一维波动理论研究复合夹芯板中波的传播与局部层裂破坏,考虑应力波在夹芯板各层之间的反射和透射,得到了各层介质中压力时程的理论计算公式,建立了一维平面波荷载在夹芯板中传播的理论计算方法。基于动量定律和第一强度理论,得到了夹芯板运动与破坏特征的理论计算公式。理论计算结果与试验结果的比较分析证明了理论计算方法的正确性。夹芯板对爆炸荷载防护特性的分析表明,虽然第一层钢板和夹芯层可以显著降低爆炸冲击波的峰值,但第二层钢板才是抵御爆炸冲击波的主要部位,而复合夹芯层的剥落破坏也需重点关注。

Abstract

Appling one-dimension wave theory, the propagation of wave in composite sandwich plate and the local spalling fracture were studied. After the reflection and transmission of stress wave between different layers of sandwich plate were considered, theoretical formulae about the pressure time-history in different layers were got, calculation method for the promulgation of one dimension plane wave in sandwich plate was also founded. Based on the momentum theorem and the first strength theory, the theoretical formulae about the characteristics of movement and damage of sandwich plate were got. After comparing the results of theory and experimentation, the theoretical calculation method was proved. The analysis about defense characteristics of sandwich plate for blast loading showed that, the first steel plate and sandwich core can reduce the peak value of blast shock wave observably, but the second steel plate is the mostly part to resist blast shock wave, and the spalling of composite core also should be paid attentions to.


关键词

爆炸力学 / 叠层复合夹芯板 / 一维应力波 / 层裂破坏

Key words

mechanics of explosion / laminated composite sandwich plate / one dimension stress wave / spalling fracture

引用本文

导出引用
唐廷;韦灼彬 朱锡 侯海量. 近距爆炸作用下叠层复合夹芯板局部层裂破坏的理论研究[J]. 振动与冲击, 2013, 32(24): 15-21
TANG Ting;WEI Zhuo-bin;ZHU Xi;HOU Hai-liang. Theoretical study on local spalling fracture of laminated composite sandwich plate subjected closely blast loading[J]. Journal of Vibration and Shock, 2013, 32(24): 15-21

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