|Table of Contents|

Correction Mechanical Model of Spherical Fragments Penetrating Gelatin

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2012年05期
Page:
755-
Research Field:
Publishing date:

Info

Title:
Correction Mechanical Model of Spherical Fragments Penetrating Gelatin
Author(s):
LIU KunWU Zhi-linXU Wan-heMO Gen-lin
School of Mechanical Engineering,NUST,Nanjing 210094,China
Keywords:
spherical fragmentspenetrating gelatincorrection mechanical modelsgelatin resistance
PACS:
O357. 1
DOI:
-
Abstract:
To improve the mechanical model of the spherical fragments penetrating gelatin includingthe inertial resistance and the viscosity resistance only,the gelatin resistance is taken into the originalmodel, and a new equation of motion is developed. The correction mechanical model consideringthree resistances is proposed. Based on the principle of least squares,parameters are calculated todetermine the best coefficients of the inertial resistance and the viscous resistance by selecting theΦ4 mm diameter spherical fragments as the example. The comparison of calculation and experimentresults of Φ3 mm,Φ4 mm and Φ4. 8 mm diameter spherical fragments verifies the reasonableness andthe accuracy of parameter selection. The results show that the correction mechanical model candescribe the movement of the three spherical fragments penetrating the gelatin more accurately.

References:

[1]刘荫秋,王正国,马玉媛. 创伤弹道学[M]. 北京:人民军医出版社,1991.
[2] Nicholas N C, Welsch J R. Ballistic gelatin [ R].Pennsylvania,US:Applied Research Laboratory,2004.
[3] 黄民荣,高永宏,顾晓辉. 刚性弹丸对花岗岩垂直侵彻的理论分析[J]. 南京理工大学学报,2008,32(6):724-728.Huang Minrong,Gao Yonghong,Gu Xiaohui. Theoreticalanalysis for rigid projectiles normal penetration intogranites[ J]. Journal of Nanjing University of Scienceand Technology,2008,32(6):724-728.
[4] 顾晓辉,王晓鸣,陈惠武,等. 动能弹低速垂直侵彻钢筋混凝土的试验研究[ J]. 南京理工大学学报,2006,30(1):1-4.Gu Xiaohui, Wang Xiaoming, Chen Huiwu, et al.Experimental studies on kinetic projectile爷s directpenetrations with low-speed against reinforced concretetargets[ J]. Journal of Nanjing University of Scienceand Technology,2006,30(1):1-4.
[5] 王树有,顾晓辉,赵有守. 混凝土侵彻试验相似准则验证分析[J]. 南京理工大学学报,2005,29(5):543-546.Wang Shuyou, Gu Xiaohui, Zhao Youshou.Experimental analysis of similarity criteria for concretepenetration [ J ]. Journal of Nanjing University ofScience and Technology,2005,29(5):543-546.
[6] Stone G W. Projectile penetration into representativetargets[R]. SAND94-1490,1994.
[7] Dzimian A J. The penetration of steel spheres intotissue models [ R]. Maryland, US: Chemical WarfareLaboratories,1956.
[8] 钱伟长. 穿甲力学[M]. 北京:国防工业出版社,1984.
[9] Nennstiel R. Once again-spheres in gelatin[ J]. TheJournal of Trauma,1990,6(2):119-123.
[10] Sturdivan L M. A mathematical model of penetration ofchunky projectiles in a gelatin tissue simulant[ R].ADA063525,1978.
[11] Segletes S B. Modeling the penetration behavior of rigidspheres into ballistic gelatin[R]. ARL-TR-4393,2008.
[12] Peters C E. A mathematical-physical model of woundballistic[J]. The Journal of Trauma,1990,6(2):303-318.
[13] 章梓雄,董曾南. 粘性流体力学[M]. 北京:清华大学出版社,1998.
[14] 尹冬梅,钱林方. 叶片受软体和硬体外物撞击的损伤分析. [J]. 振动与冲击,2009,28(3):6-13.Yin Dongmei,Qian Linfang. Impact damage analysis ofblades due to impacts from soft body and hard one. [J].Journal of Vibration and Shock,2009,28(3):6-13.
[15] Dubin H C. A cavitation model for kinetic energyprojectiles penetrating gelatin [ R]. Maryland, USA:Ballistic Research Laboratory,1974.
[16] Sellier K G. Wound ballistics and the scientificbackground [ M]. Amsterdam, Netherlands: ElsevierScience,1994.
[17] 梁晋文,陈林才,何贡. 误差理论与数据处理[ M].北京:中国计量出版社,2001.
[18] Peters C E. Dynamics of high-speed projectiles in tissuestimulants and living tissue [ R]. Tennessee, USA:UTSI,1986.

Memo

Memo:
-
Last Update: 2012-11-26