本文总结以往砂石撞击的文献资料,得到砂石撞击时的速度和能量等参数.进行了砂石撞击复合材料平板的试验,并且建立了玻璃纤维复合材料平板砂石撞击的LS-DYNA有限元计算模型,将砂石撞击试验的结果与LS-DYNA有限元仿真计算的结果进行对比,使计算中的复合材料行为与试验中的行为相同.通过对砂石模型的编程处理,使计算中砂石的行为与砂石在撞击中的行为相一致.通过这种方法,得到了采用LS-DYNA软件计算砂石撞击时复合材料平板及砂石的准确参数及相关接触参数.在今后砂石撞击雷达罩的计算中,将复合材料平板的模型替换为雷达罩模型,即可形成准确的雷达罩与砂石撞击的有限元模型,再采用LS-DYNA进行雷达罩与砂石撞击的计算,便可得到可靠的仿真计算结果.
参考文献
| [1] | Silva M A G,Gismasiu C,Chiorrean C G .Numerical simulation of ballistic inpact on composite laminates[J].International Journal of Impact Engineering,2005,31 |
| [2] | Wambua P,Vsngrimbe B,Lomov S .The response of natural fibre composites to ballistic impact by fragment simulating projectiles[J].Composite Structures,2007,77 |
| [3] | 于连超,陈伟,关玉璞,温海涛.复合材料层合板鸟撞损伤及吸能影响因素数值分析[J].航空动力学报,2008(06):1106-1110. |
| [4] | 谢宗蕻,卞文杰,昂海松,乔新.蜂窝夹芯结构雷达罩鸟撞有限元分析与模拟[J].爆炸与冲击,1999(03):0. |
| [5] | 毋玲,郭英男,李玉龙.蜂窝夹芯雷达罩结构的鸟撞数值分析[J].爆炸与冲击,2009(06):642-647. |
| [6] | 魏兴,高明宝,胡醒醒.运用md.nastran的鸟撞复合材料层合板显示非线形分析[J].科学技术与工程,2100,11 (20):4679-4683. |
| [7] | 郑涵天,王富生,岳珠峰.复合材料雷达罩鸟撞破坏流固耦合动响应分析[J].振动与冲击,2012(08):170-175. |
| [8] | 金宏彬,丁辛.复合材料弹道冲击性能研究进展[J].玻璃钢/复合材料,2002(02):19-23. |
| [9] | 刘红影,刘德勤.温度对芳纶/玻璃纤维复合材料层压板冲击性能的影响[J].玻璃钢/复合材料,2009(06):25-27. |
| [10] | 张华山,黄争鸣.复合材料层合板低速冲击承载能力的细观力学有限元模型[J].玻璃钢/复合材料,2008(05):12-17. |
| [11] | U.S Department of Transportation/Federal Avition Administration.DOT/FAA/AR-99/54 FAA Debris Mitigation Impact Test Report[M].Springfield,Virginia:National Technical Information Service(NTIS),1999.,1999. |
| [12] | Christian Scheidl,Michael Chiari,Roland Kaitna,Matthias Müllegger,Alexander Krawtschuk,Thomas Zimmermann,Dirk Proske .Analysing Debris-Flow Impact Models,Based on a Small Scale Modelling Approach[J].Surveys in Geophysics,2013,34 |
| [13] | Federal Emergecy Management Agency (FEMA).DESIGN AND CONSTRUCTION GUIDANCE FOR COMMUNITY SAFE ROOMS[M].Nebraska Avenue Complex:U.S Department of Homeland Security,2008.,2008. |
| [14] | Department of Defense/United States of America.Composite Materials Handbook Volume 3.Polymer Matrix Composites Materials Usage,Design,and Analysis[M].Philadelphia,PA:Document Automation and Production Service(DAPS),2002.,2002. |
| [15] | Holmquist T J,Johnson G R.A computational constitutive model for concrete subjected to large strains,high strain rates,and high pressures[C].Canada:14th International Symposium on Ballistics Quebec,1993:591-600.,1993. |
| [16] | John O.Hallquist.LS-DYNA Theory Manual[M].California:Livermore Software Technology Corporation,1998.,1998. |
| [17] | Iannucci L .Progressive failure modeling of woven carbon composite under impact[J].International Journal of Impact Engineering,2006,32(6):1013-1043.,2006. |
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