小当量柱型装药水下近场爆炸固支单层方形钢板毁伤特性研究

PDF(1983 KB)

振动与冲击 ›› 2021, Vol. 40 ›› Issue (7) : 29-36.

论文

秦业志，王莹，王志凯，姚熊亮

作者信息 +

Damage characteristics of fixed single-layer squaresteel plate under near-field underwater explosion of small equivalent column charge

QIN Yezhi, WANG Ying, WANG Zhikai, YAO Xiongliang

Author information +

文章历史 +

摘要

为研究小当量柱形装药水下近场爆炸固支单层方形钢板毁伤特性，采用高精度龙格库塔间断迦辽金（Runge-Kutta discontinuous Galerkin，RKDG）方法求解柱形装药水下近场爆炸载荷，并与水下爆炸经验公式进行对比，吻合良好。将计算得到的爆炸载荷加载到LS-DYNA非线性有限元求解器中，得到固支单层方形钢板的毁伤特性，与试验结果进行对比，证明模型的精确性，表明龙格库塔间断迦辽金-有限元法（Runge-Kutta discontinuous Galerkin-finite element method,RKDG-FEM）耦合计算模型能够精确模拟柱形装药在近场爆炸条件下固支单层方形钢板的响应特性。随后研究了固支单层方形钢板在板厚4 mm、药量5~30 g和板厚3~8 mm、药量20 g的毁伤模式。研究发现，固支单层方形钢板的毁伤模式主要为塑性大变形、花瓣型破口和冲塞型圆形破口等。并拟合了考虑药量、板厚因素的破口尺寸估算公式，可为小当量柱形装药水下近场爆炸单层板的毁伤研究提供参考。

Abstract

In order to study damage characteristics of fixed single-layer square steel plate under near-field underwater explosion of small equivalent column charge, the high-precision Runge-Kutta discontinuous Galerkin（RKDG）method was used to solve the column charge near-field underwater explosion load, and the solution was compared with that obtained using the empirical formula of underwater explosion, both of them agreed well each other.The calculated explosion load was input into the LS-DYNA nonlinear finite element solver,damage characteristics of the fixed single-layer square steel plate were obtained, they were compared with test results to verify the accuracy of the model. It was shown that the Runge-Kutta discontinuous Galerkin-finite element method（RKDG-FEM） coupled computation model can accurately simulate damage response characteristics of fixed singer-layer square steel plate under column charge near-field underwater explosion.Then, damage modes of the fixed single-layer square steel plate with thickness of 4 mm andcharge of 5-30 g as well thickness of 3-8 mm and ascharge of 20 g werestudied, respectively. The results showed that damage modes of fixed single-layer square steel plate are mainly plastic deformation, petal type break and plug type round break;the break size calculation formula considering charge weight and plate thickness is fitted;the study results can provide a reference for the damage research of single-layer plate under small equivalent column charge near-field underwater explosion.

导出引用

秦业志，王莹，王志凯，姚熊亮. 小当量柱型装药水下近场爆炸固支单层方形钢板毁伤特性研究[J]. 振动与冲击, 2021, 40(7): 29-36

QIN Yezhi, WANG Ying, WANG Zhikai, YAO Xiongliang. Damage characteristics of fixed single-layer squaresteel plate under near-field underwater explosion of small equivalent column charge[J]. Journal of Vibration and Shock, 2021, 40(7): 29-36

参考文献

［1］COLE R H. Underwater explosion［M］. Princeton: Princeton University Press, 1948.
［2］RAJENDRAN R, NARASIMHAN K. Damage prediction of clamped circular plates subjected to contact underwater explosion［J］. International Journal of Impact Engineering, 2001, 25(4):373-386.
［3］WEN H M. Deformation and tearing of clamped circular work-hardening plates under impulsive loading［J］. International Journal of Pressure Vessels and Piping, 1998, 75(1):67-73.
［4］NURICK G N,SHAVE G C. The deformation and tearing of thin square plates subjected to impulsive loads: an experimental study［J］.International Journal of Impact Engineering,1996,18(1): 99-116.
［5］NURICK G N, LUMPP D M. Deflection and tearing of clamped stiffened circular plates subjected to uniform impulsive blast loads ［J］. WIT Transactions on the Built Environment, 1970, 25:393-402.
［6］NURICK G N, TEELING-SMITH R G. Predicting the onset of necking and hence rupture of thin plates loaded impulsively-an experimental view ［C］//Structures under Shock and Impact II: Second International Conference. Portsmouth:SSI, 1992.
［7］WIERZBICKI T. Petalling of plates underwater explosive and impact loading［J］. International Journal of Impact Engineering, 1999,22(9):935-954.
［8］张振华，朱锡. 刚塑性板在柱状炸药接触爆炸载荷作用下的花瓣开裂研究［J］. 船舶力学，2004,8（5）：113-119.
ZHANG Zhenhua, ZHU Xi. Petaling of rigid plastic plate under contact explosive loading of cylindrical dynamic［J］. Journal of Ship Mechanics,2004,8（5）：113-119.
［9］牟金磊，朱锡，黄晓明，等.水下近场非接触爆炸作用下固支方板破口计算［J］. 振动与冲击，2011，30（1）：37-39.
MU Jinlei, ZHU Xi, HUANG Xiaoming, et al. Crevasse computation of clamped square plates subjected to near-field noncontact underwater explosion［J］. Journal of Vibration and Shock,2011，30（1）：37-39.
［10］LEBLANC J, SHILLINGS C,GAUCH E,et al. Near field underwater explosion response of polyurea coated composite plates［J］.Experimental Mechanics,2016,56(4):569-581.
［11］荣吉利，李坚，杨荣杰，等.水下爆炸气泡脉动的实验及数值模拟研究［J］.北京理工大学学报，2008,28（12）：1035-1038.
RONG Jili, LI Jian, YANG Rongjie,et al. Experiment and numerical simulation for the bubble impulse in underwater explosion［J］.Transactions of Beijing Institute of Technology, 2008,28（12）：1035-1038.
［12］胡毅亭，贾宪振，饶国宁，等. 水下爆炸冲击波和气泡脉动的数值模拟研究［J］.舰船科学技术，2009,31（2）：134-140.
HU Yiting, JIA Xianzhen, RAO Guoning, et al. Numerical study of underwater explosion shock and bubble pulse［J］. Ship Science and Technology, 2009, 31(2):134-140.
［13］JEONG W, SEONG J. Comparison of effects on technical variances of computational fluid dynamic (CFD) software based on finite element and finite volume methods ［J］. International Journal of Mechanical Sciences, 2014, 78:19-26.
［14］REED W H, HILL T R. Triangular mesh methods for the newton transport equation［R］. Los Alamos：Los Alamos Scientific Laboratory, 1973.
［15］PARK J. A coupled Runge-Kutta discontinuous Galerkin-direct ghost fluid (RKDG-DGF) method to near-field early-time underwater explosions (UNDEX) simulations［D］.Montgomery County: Virginia Polytechnic Institute and State University, 2008.
［16］LOVERICH J, SHUMLAK U. A discontinuous Galerkin method for the full two-fluid plasma model［J］. Computer Physics Communications, 2005, 169: 251-255.
［17］FEDKIW R P, ASLAM T, MERRIMAN B, et al. A non-oscillatory eulerian approach to interfaces in multimaterial flows (the ghost fluid method)［J］. Journal of Computational Physics, 1999, 152: 457-492.
［18］QIU J X, LIU T G, KHOO B C. Simulations of compressible two-medium flow by Runge-Kutta discontinuous Galerkin methods with the ghost fluid method［J］. Communications in Computational Physics, 2008,3(3):479-504.
［19］COCKBURN B, SHU C W. TVB Runge-Kutta local projection discontinuous Galerkin finite element method for conservation laws Ⅱ：general frame work［J］. Mathematics of Computation, 1989, 52(186):411-435.
［20］COCKBURN B, LIN S Y, SHU C W. TVB Runge-Kutta local projection discontinuous Galerkin finite element method for conservation laws Ⅲ: one-dimensional systems［J］. Journal of Computational Physics, 1989, 84(1):90-113.
［21］COCKBURN B, HOU S, SHU C W. The TVB Runge-Kutta local projection discontinuous Galerkin finite element method for conservation laws Ⅳ：the multidimensional case［J］. Mathematics of Computation, 1990, 54(190):545-581.
［22］QIU J X, LIU T G, KHOO B C, et al. A numerical study for the performance of the Runge-Kutta discontinuous Galerkin method based on different numerical fluxes［J］. Journal of Computational of Physics, 2006,212(2):540-565.
［23］QIU J X, LIU T G, KHOO B C. Runge-Kutta discontinuous Galerkin methods for compressible two-medium flow simulations: one-dimensional case［J］. Journal of Computational of Physics, 2007, 222(1):353-373.
［24］PENG Y, DENG W Y, XU P, et al. Study on the collision performance of a composite energy-absorbing structure for subway vehicles［J］. Thin Walled Structures, 2015,94:663-672.
［25］ZAMYSHLYAYEV B V, YAKOVLEV Y S. Dynamic loads in underwater explosion［R］. Washington: Naval Intelligence Support Center,1973.
［26］KEIL A H. Introduction to underwater explosion research ［M］. Portsmout: UERD, Norfolk Naval Ship Yard, 1956.
［27］吉田隆. 二次世界大战初期日本海军舰船在炸弹攻击下的损伤实例分析［J］.船舶科学，1990,11（5）：70-81.
Yoshida. Damage case analysis of Japanese navy ships subjected to bomb attack in the early of the second world war［J］. Ship Science, 1990, 11(5): 70-81.
［28］杨棣.水下爆炸下舰艇典型结构塑性损伤研究［D］. 哈尔滨：哈尔滨工程大学，2015.