Article(id=1322971746009231758, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1322971592304763246, 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=1227283200000, receivedDateStr=2008-11-22, revisedDate=1246809600000, revisedDateStr=2009-07-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1793350643874, onlineDateStr=2026-10-30, pubDate=1260806400000, pubDateStr=2009-12-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793350643874, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793350643874, creator=13701087609, updateTime=1793350643874, updator=13701087609, issue=Issue{id=1322971592304763246, tenantId=1146029695717560320, journalId=1255847867265597444, year='2009', volume='23', issue='6', pageStart='401', pageEnd='480', issueExtLink='null', onlineDate='null', pubDate='1260806400000', pubDateStr='2009-12-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793350607229, creator='13701087609', updateTime=1793350607229, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=421, endPage=426, ext={EN=ArticleExt(id=1322971748915884433, articleId=1322971746009231758, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Numerical Simulation of Explosive Particles Compaction, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Understanding the mechanics of explosives compaction can provide theoretical foundation to improve pressing technique and quality of explosive component. In this paper, a calculating model of explosive particles pressed to charge was developed. The explosive particles were considered as being the uniform diameter and arraying in order. With non-linear finite element calculating method, the numerical simulations of explosives compaction were conducted, and the deformation, mechanics and temperature of explosive particles were analyzed. The calculated results show that explosive particles compaction experiences two phases: displacement and deformation. In the displacement phase, the stress centralization appears on the contact surfaces between particles and constrained surface. In the plastic deformation phase, the stress in the particles increases sharply and tend to be uniform. The explosive particles temperature increases with pressing. When the explosive charge is close to the density of crystalline grains, the highest temperature occurs in the center of charge.

, authors=Qun LIU1, Lang CHEN1, Jian-Ying LU1, 3, Ming ZHANG2, authorsList=Qun LIU, Lang CHEN, Jian-Ying LU, Ming ZHANG, authorCompany=null, correspAuthors=null, 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=1322971753961632151, articleId=1322971746009231758, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=炸药颗粒压制成型数值模拟, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

分析炸药压药过程中细观的力学行为,能够为改进压药工艺和提高炸药元件质量提供理论依据。建立了模压条件下炸药颗粒压制成型的计算模型。模型中炸药颗粒被认为是直径相同的球形颗粒,并按一定规律排列。利用非线性有限元计算方法,对炸药颗粒压制成型过程进行了数值模拟计算,分析了压制过程中炸药颗粒变形、受力和温度变化情况。结果表明:药粒在压缩中存在运动和变形两个阶段。在药粒运动阶段,应力集中主要出现在颗粒与约束面的接触部分;药粒进入了塑性变形后,药粒内部压力迅速升高且压力趋于一致。压缩过程中药粒温度升高,药床接近密实状态时,药床中心处药粒温度最高。

, authors=刘群1, 陈朗1, 鲁建英1, 3, 张明2, authorsList=刘群, 陈朗, 鲁建英, 张明, authorCompany=null, correspAuthors=null, authorNote=

刘群(1983—),男,博士研究生,主要从事冲击起爆研究. E-mail:

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刘群(1983—),男,博士研究生,主要从事冲击起爆研究. E-mail:

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刘群(1983—),男,博士研究生,主要从事冲击起爆研究. E-mail:

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炸药颗粒压制成型数值模拟
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刘群 1 , 陈朗 1 , 鲁建英 1, 3 , 张明 2
高压物理学报 | 2009,23(6): 421-426
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高压物理学报 | 2009 , 23 (6) : 421 -426
炸药颗粒压制成型数值模拟
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刘群1 , 陈朗1, 鲁建英1, 3, 张明2
作者信息
  • 1.北京理工大学爆炸科学与技术国家重点实验室,北京 100081
  • 2.中国工程物理研究院化工材料研究所,四川 绵阳 621900
  • 3.防化指挥工程学院,北京 102205
作者简介:

刘群(1983—),男,博士研究生,主要从事冲击起爆研究. E-mail:

Numerical Simulation of Explosive Particles Compaction
Qun LIU1 , Lang CHEN1, Jian-Ying LU1, 3, Ming ZHANG2
Affiliations
  • 1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
  • 2.Institute of Chemical Material, CAEP, Mianyang 621900, China
  • 3.The Institute of Chemical Defense, Beijing 102205, China
出版时间: 2009-12-15
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分析炸药压药过程中细观的力学行为,能够为改进压药工艺和提高炸药元件质量提供理论依据。建立了模压条件下炸药颗粒压制成型的计算模型。模型中炸药颗粒被认为是直径相同的球形颗粒,并按一定规律排列。利用非线性有限元计算方法,对炸药颗粒压制成型过程进行了数值模拟计算,分析了压制过程中炸药颗粒变形、受力和温度变化情况。结果表明:药粒在压缩中存在运动和变形两个阶段。在药粒运动阶段,应力集中主要出现在颗粒与约束面的接触部分;药粒进入了塑性变形后,药粒内部压力迅速升高且压力趋于一致。压缩过程中药粒温度升高,药床接近密实状态时,药床中心处药粒温度最高。

炸药  /  颗粒压制  /  数值模拟

Understanding the mechanics of explosives compaction can provide theoretical foundation to improve pressing technique and quality of explosive component. In this paper, a calculating model of explosive particles pressed to charge was developed. The explosive particles were considered as being the uniform diameter and arraying in order. With non-linear finite element calculating method, the numerical simulations of explosives compaction were conducted, and the deformation, mechanics and temperature of explosive particles were analyzed. The calculated results show that explosive particles compaction experiences two phases: displacement and deformation. In the displacement phase, the stress centralization appears on the contact surfaces between particles and constrained surface. In the plastic deformation phase, the stress in the particles increases sharply and tend to be uniform. The explosive particles temperature increases with pressing. When the explosive charge is close to the density of crystalline grains, the highest temperature occurs in the center of charge.

explosive  /  particles compaction  /  numerical simulation
刘群, 陈朗, 鲁建英, 张明. 炸药颗粒压制成型数值模拟. 高压物理学报, 2009 , 23 (6) : 421 -426 .
Qun LIU, Lang CHEN, Jian-Ying LU, Ming ZHANG. Numerical Simulation of Explosive Particles Compaction[J]. Chinese Journal of High Pressure Physics, 2009 , 23 (6) : 421 -426 .
  • 国家自然科学基金(10476001)
参考文献 引证文献
排序方式:
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2009年第23卷第6期
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  • 接收时间:2008-11-22
  • 首发时间:2026-10-30
  • 出版时间:2009-12-15
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  • 收稿日期:2008-11-22
  • 修回日期:2009-07-06
基金
国家自然科学基金(10476001)
作者信息
    1.北京理工大学爆炸科学与技术国家重点实验室,北京 100081
    2.中国工程物理研究院化工材料研究所,四川 绵阳 621900
    3.防化指挥工程学院,北京 102205
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2种不同金属材料的力学参数
科
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属数
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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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