Article(id=1325114930348818534, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1325114771112079843, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1287936000000, receivedDateStr=2010-10-25, revisedDate=1297958400000, revisedDateStr=2011-02-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1793861618839, onlineDateStr=2026-11-05, pubDate=1339689600000, pubDateStr=2012-06-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793861618839, onlineIssueDateStr=2026-11-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793861618839, creator=13701087609, updateTime=1793861618839, updator=13701087609, issue=Issue{id=1325114771112079843, tenantId=1146029695717560320, journalId=1255847867265597444, year='2012', volume='26', issue='3', pageStart='241', pageEnd='360', issueExtLink='null', onlineDate='null', pubDate='1339689600000', pubDateStr='2012-06-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793861580875, creator='13701087609', updateTime=1793861580875, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=259, endPage=265, ext={EN=ArticleExt(id=1325114930537562215, articleId=1325114930348818534, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Perforation Simulations of High-Strength Steel by Steel Core Bullets, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Material experiments were performed to identify dynamic constitutive model parameters for steel core of 7.62 mm×39 mm bullets and N-1 high-strength steel. Highly detailed FE model of the projectile and steel target plate was built up. The J-C fracture rule for the target plate was modified and implemented with LS-DYNA. The process of N-1 steel being impacted by steel core projectile was simulated with the modified fracture rule. Adiabatic shear behavior and the size of plug from the target plate are predicted accurately. Ballistic limit velocity simulation agrees well with experimental result. In this way, the unreasonable tensile failure within steel target and the underestimation of plug size predicted based on original J-C fracture rule are overcome.

, authors=Heng XIE, Zhen-Hua LÜ, authorsList=Heng XIE, Zhen-Hua LÜ, authorCompany=null, correspAuthors=Zhen-Hua LÜ, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1325114931204456552, articleId=1325114930348818534, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=钢芯弹冲击高强度钢过程的数值模拟分析, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

通过材料特性实验获得7.62 mm×39 mm普通钢芯弹弹芯、N-1高强度钢靶板材料的力学本构模型参数,建立了弹体和靶板的精细有限元模型。对靶板钢材的J-C断裂准则进行改进,并在LS-DYNA软件中实现。应用改进的断裂准则进行了N-1钢受普通钢芯弹垂直冲击过程的数值模拟,计算结果可更准确地反映出实验中靶板出现的绝热剪切冲塞行为,冲塞尺寸较接近实验结果,弹道极限速度也与实验吻合。由此克服了基于原J-C断裂准则计算的缺陷——靶板发生与实验结果不符的拉伸型破坏、冲塞尺寸明显偏小。

, authors=谢恒, 吕振华, authorsList=谢恒, 吕振华, authorCompany=null, correspAuthors=吕振华, authorNote=

谢恒(1983—),男,博士,主要从事冲击动力学研究. E-mail:

, correspAuthorsNote=
吕振华(1961—),男,教授,主要从事车辆防护研究. E-mail:
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谢恒(1983—),男,博士,主要从事冲击动力学研究. E-mail:

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钢芯弹冲击高强度钢过程的数值模拟分析
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谢恒 , 吕振华
高压物理学报 | 2012,26(3): 259-265
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高压物理学报 | 2012 , 26 (3) : 259 -265
钢芯弹冲击高强度钢过程的数值模拟分析
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谢恒 , 吕振华
作者信息
  • 清华大学汽车工程系汽车安全与节能国家重点实验室,北京 100084
通讯作者:
吕振华(1961—),男,教授,主要从事车辆防护研究. E-mail:
作者简介:

谢恒(1983—),男,博士,主要从事冲击动力学研究. E-mail:

Perforation Simulations of High-Strength Steel by Steel Core Bullets
Heng XIE , Zhen-Hua LÜ
Affiliations
  • State Key Laboratory of Automotive Safety and Energy, Department of Automotive Engineering, Tsinghua University, Beijing, 100084, China
出版时间: 2012-06-15
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通过材料特性实验获得7.62 mm×39 mm普通钢芯弹弹芯、N-1高强度钢靶板材料的力学本构模型参数,建立了弹体和靶板的精细有限元模型。对靶板钢材的J-C断裂准则进行改进,并在LS-DYNA软件中实现。应用改进的断裂准则进行了N-1钢受普通钢芯弹垂直冲击过程的数值模拟,计算结果可更准确地反映出实验中靶板出现的绝热剪切冲塞行为,冲塞尺寸较接近实验结果,弹道极限速度也与实验吻合。由此克服了基于原J-C断裂准则计算的缺陷——靶板发生与实验结果不符的拉伸型破坏、冲塞尺寸明显偏小。

弹道冲击  /  高强度钢  /  数值模拟  /  断裂准则  /  绝热剪切现象  /  冲塞破坏

Material experiments were performed to identify dynamic constitutive model parameters for steel core of 7.62 mm×39 mm bullets and N-1 high-strength steel. Highly detailed FE model of the projectile and steel target plate was built up. The J-C fracture rule for the target plate was modified and implemented with LS-DYNA. The process of N-1 steel being impacted by steel core projectile was simulated with the modified fracture rule. Adiabatic shear behavior and the size of plug from the target plate are predicted accurately. Ballistic limit velocity simulation agrees well with experimental result. In this way, the unreasonable tensile failure within steel target and the underestimation of plug size predicted based on original J-C fracture rule are overcome.

ballistic impact  /  high-strength steel  /  numerical simulation  /  fracture rule  /  adiabatic shear  /  plugging
谢恒, 吕振华. 钢芯弹冲击高强度钢过程的数值模拟分析. 高压物理学报, 2012 , 26 (3) : 259 -265 .
Heng XIE, Zhen-Hua LÜ. Perforation Simulations of High-Strength Steel by Steel Core Bullets[J]. Chinese Journal of High Pressure Physics, 2012 , 26 (3) : 259 -265 .

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Xiao H, He H, Zeng S Y. Study of 7.62 mm ordinary bullets perforating fixed target of low carbon steel[A]//17th National Conference on Structural Engineering[C]. Wuhan, 2008. (in Chinese)
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2012年第26卷第3期
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  • 接收时间:2010-10-25
  • 首发时间:2026-11-05
  • 出版时间:2012-06-15
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  • 收稿日期:2010-10-25
  • 修回日期:2011-02-18
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    清华大学汽车工程系汽车安全与节能国家重点实验室,北京 100084

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吕振华(1961—),男,教授,主要从事车辆防护研究. E-mail:
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2种不同金属材料的力学参数
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genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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