近爆荷载作用下固支水背方板的变形挠度研究

李思宇 1 李晓彬 1 赵鹏铎 2

振动与冲击 ›› 2017, Vol. 36 ›› Issue (14) : 174-177.

PDF(966 KB)
PDF(966 KB)
振动与冲击 ›› 2017, Vol. 36 ›› Issue (14) : 174-177.
论文

近爆荷载作用下固支水背方板的变形挠度研究

  • 李思宇 1 李晓彬 1 赵鹏铎 2
作者信息 +

Study of deflection of clamped square plates subjected to close-range explosion

  • Li Si-yu 1   Li Xiao-bin 1   Zhao Peng-duo 2
Author information +
文章历史 +

摘要

将水背板在近爆荷载下的响应过程分为3个阶段,基于动量守恒原理,在一定简化条件的基础上推导了近爆荷载作用下固支水背方板的挠度近似计算方法。通过数值仿真方法,研究了板后液体对变形挠度的影响,结果表明,板后液体的存在减小了板的最大挠度,使板的变形呈现明显的局部效应。进一步对水背板在不同装药形状和爆距下的变形响应进行了仿真分析,将近似计算结果和仿真值进行了比较,结果在爆距较小的情况下,两者吻合较好。

Abstract

The response process of clamped square plates subjected to close-range explosion was divided into three stages. On the basis of a certain simplified conditions, an approximate calculation method of deflection of clamped square plates subjected to close-range explosion was given based on principle of momentum conservation. Based on the numerical simulation method, the influence of water on the plate deflection was disscussed. The results show that, with the effections of water, the deflections of plates become smaller and the deformations of plates exhibit significant local effect. Forward, the effect of charge shape and charge distance on deflections of water back plate were also studied by simulation methord. Comparison results show that the approximate calculation results is in good assistance with simulation's when the charge distance is small.
 

关键词

接近爆炸;防护液舱;水背板 / 数值仿真;挠度

Key words

close-range explosion / gurding fluid cabin / water back plate / simulation / deflection

引用本文

导出引用
李思宇 1 李晓彬 1 赵鹏铎 2. 近爆荷载作用下固支水背方板的变形挠度研究[J]. 振动与冲击, 2017, 36(14): 174-177
Li Si-yu 1 Li Xiao-bin 1 Zhao Peng-duo 2. Study of deflection of clamped square plates subjected to close-range explosion[J]. Journal of Vibration and Shock, 2017, 36(14): 174-177

参考文献

[1] Hudson G E. A Theory of the Dynamic Plastic Deformation of a Thin Diaphragm[J]. Journal of Applied Physics, 1951, 22(1):1-11.
[2] Duffey T A. Large deflection dynamic reponse of clamped circular plates subjected to explosive loading[C]// Other Information: UNCL. Orig. Receipt Date: 31-DEC-67. 1966.
[3] Wierzbicki T, Florence A L. A theoretical and experimental investigation of impulsively loaded clamped circular viscoplastic plates[J]. International Journal of Solids & Structures, 1970, 6(5):553-554.
[4] Nurick G N, Martin J B. Deformation of thin plates subjected to impulsive loading—a review Part II: Experimental studies [J]. International Journal of Impact Engineering, 1989, 8(2):171–186.
[5] Jones N, Uran T O, Tekin S A. The dynamic plastic behavior of fully clamped rectangular plates[J]. International Journal of Solids & Structures, 1970, 6(12):1499-1512.
[6] Jones N. Recent Progress in the Dynamic Plastic Behavior of Structures, Part III[J]. Shock & Vibration Digest, 1981, 13(10):3-16.
[7]Baker W E. Literature Review : Approximate Techniques for Plastic Deformation of Structures under Impulsive Loading[J]. Shock & Vibration Digest, 1975, 7(7):107-117.
[8] Nurick G N, Martin J B. Deformation of thin plates subjected to impulsive loading—A review: Part I: Theoretical considerations[J]. International Journal of Impact Engineering, 1989, 8(89):159-170.
[9] 朱锡, 朱凌, 殷沐德,等. 爆炸载荷下固支方板塑性变形过程的试验研究[J]. 海军工程大学学报, 1985(2):61-65.
ZHU Xi, ZHU Ling, YIN Mu-de, et al. Research on plastic deformation process in blast-loaded fully clamped square plates [J]. Journal of naval engineering university, 1985(2):61-65.(in Chinese)
[10] 黄骏德, 殷沐德, 朱锡,等. 爆炸载荷下固支方板大变形的塑性动力响应[J]. 海军工程大学学报, 1985(4):1-9.
HUANG Jun-de, YIN Mu-de, ZHU Xi, et al. Dynamic plastic response in blast-loaded fully clamped square plates with large deflections[J]. Journal of naval engineering university, 1985(4):1-9.(in Chinese)
[11]吴成, 倪艳光, 郭磊,等. 水下爆炸载荷作用下气背固支方板的动态响应分析[J]. 北京理工大学学报, 2007, 27(3):205-209.
WU Chen, NI Yan-guang, GUO Lei, et al. Dynamic response of rectangular air-back plate to underwater exploding loading[J]. Journal of Beijing institute of technology, 2007, 27(3):205-209.(in Chinese)
[13] 杜志鹏, 李晓彬, 夏利娟,等. 舰船防护水舱在接近爆炸载荷作用下响应的理论研究[J]. 船舶力学, 2007, 11(1):119-127.
DU Zhi-peng, LI Xiaobin, XIA Lijuan, et al. Theory research on the response of the warship protective tank under near- by explosion[J]. Journal of Ship Mechanics,ship mechanics, 2007, 11(1):119-127.(in Chinese)
[13] Henrych J. The dynamics of explosion and its use[M]. Elsevier: Elsevier scientific publishing company,1979.108- 114.
[14] Hu Y Q. Application of response number for dynamic plastic response of plates subjected to impulsive loading[J]. International Journal of Pressure Vessels & Piping, 2000, 77(12):711-714
[15] JOHNSON G R, COOK W H. A constitutive model and data for metals aubjected to large strains,high strain rates and high temperature[C]//Proceedings of the Seventh International symposium on Ballistics, Netherland. 1983.

PDF(966 KB)

Accesses

Citation

Detail

段落导航
相关文章

/