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时间:2020-03-28
《超高分子量聚乙烯纤维增强层合厚板抗高速钝头弹侵彻的理论模型.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第10卷第3期中国舰船研究V01.10No.3兰Q!i生鱼旦垦塾i里!!!!!旦翌!!竺!璺坠i2垦!!!垒!!垒』坠望:兰Q!i网络出版地址:http://www.cnki.net/kcms/detail/42.1755.tj.20150525.1638.002.html期刊网址:WWW.ship-research.com引用格式:陈长海,徐文献,朱锡,等.超高分子量聚乙烯纤维增强层合厚板抗高速钝头弹侵彻的理论模型[J].中国舰船研究,2015,10(3):63—69,83.CHENChanghai,XUWenxian,ZHUXi,eta1.The
2、oreticalmodelforthickultra-highmolecularweightpolyethylenefi—berreinforcedlaminatespenetratedbyhigh-velocityblunt-nosedprojectiles[J].ChineseJournalofShipResearch,2015。10(3):63—69.83.超高分子量聚乙烯纤维增强层合厚板抗高速钝头弹侵彻的理论模型陈长海1,徐文献2,朱锡1,侯海量1l海军工程大学舰船工程系,湖北武汉4300332海军湛江地区装备修理监修室,广东湛江524005
3、摘要:结合超高分子量聚乙烯纤维增强塑料(UFRP)层合厚板抗高速侵彻的特点,将整个侵彻过程分为开坑镦粗、剪切压缩和拉伸变形3个阶段。通过改进开坑镦粗阶段的计算方法和拉伸变形阶段的计算过程,基于能量守恒原理建立UFRP层合厚板抗高速钝头弹侵彻的弹体侵彻深度和靶板弹道极限的计算模型,并给出相应的计算流程图。通过采用该模型计算相关文献试验工况下的弹体侵彻深度和层合厚板弹道极限,发现计算值与文献试验结果均吻合较好。改进后的模型考虑了弹丸初速度对开坑镦粗阶段侵彻深度的影响,能够对高速钝头弹侵彻UFRP层合厚板的弹体侵彻深度和层合厚板的弹道极限进行合理的预测,并
4、可降低试验成本。关键词:层合厚板;高速侵彻;舰船防护;超高分子量聚乙烯中图分类号:U661.43;TB332文献标志码:ADOI:10.3969/j.issn.1673—3185.2015.03.011Theoreticalmodelforthickultra-highmolecularweightpolyethylenefiberreinforcedlaminatespenetratedbyhigh-velocityblunt-nosedprojectilesCHENChanghail,XUWenxian2,ZHUXil,HOUHailian911
5、DepartmentofNavalArchitectureEngineering,NavalUniversityofEngineering,Wuhan430033,China2NavalSupervisorOfficeofEquipmentMaintenanceinZhanjiangArea,Zhanjiang524005,ChinaAbstract:Duetothehighpenetration-resistanceofthickultra-highmolecularweightpolyethylenefiberreinforcedplastic(
6、UFRP)laminatesunderhighvelocities,thewholepenetrationprocessisdividedintothreephases:cratering&mushroomingphase,shearing&compressionphase,andstretchingdeformationphase.Byalteringthecomputationmethodforthecratering&mushroomingphaseandthecalculationpro-cessforthestretchingdeforma
7、tionphase,ananalyticalmodelisestablishedbasedontheenergyconserva-tionprincipletocomputethepenetrationdepthofprojectilesaswellastheballisticlimitsoflaminatesinthecaseofthickUFRPlaminatesbeingpenetratedbyhigh-velocityblunt-nosedprojectiles.TheCOITe-spondingcomputationflowchartsar
8、ealsopresented.Moreover,penetrationdepthsofprojectiles
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