Article(id=1324025104111383141, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1324025103306072959, 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=1245340800000, receivedDateStr=2009-06-19, revisedDate=1253030400000, revisedDateStr=2009-09-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1793601784016, onlineDateStr=2026-11-02, pubDate=1281801600000, pubDateStr=2010-08-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793601784016, onlineIssueDateStr=2026-11-02, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793601784016, creator=13701087609, updateTime=1793601784016, updator=13701087609, issue=Issue{id=1324025103306072959, tenantId=1146029695717560320, journalId=1255847867265597444, year='2010', volume='24', issue='4', pageStart='241', pageEnd='320', issueExtLink='null', onlineDate='null', pubDate='1281801600000', pubDateStr='2010-08-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793601783825, creator='13701087609', updateTime=1793602712251, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1324028997528584361, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1324025103306072959, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1324028997528584362, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1324025103306072959, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=248, endPage=254, ext={EN=ArticleExt(id=1324025105852019302, articleId=1324025104111383141, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Dynamic Behavior of Void Growth in Aluminum with a Preexisting Flaw under Intense Impact Loading, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

By means of the explicit nonlinear dynamic finite element computer code LS-DYNA, the nucleation and growth of void in aluminum with a preexisting flaw under plate impact loading have been investigated. The results are as follows: firstly, the void nucleation occurs from the boundary of the preexisting flaw and the ductile matrix, and once the voids have been nucleated, they grow linearly through the localized plastic deformation; secondly, the growth rate of void radius increases linearly with the shock loading amplitude; thirdly, the yield strength and the size of the preexisting flaw have an obvious influence on the relative growth rate of void; finally, if the threshold stress of the void growth is set as 3.5 times of the yield strength, the simulation results agree reasonably well with the theoretical results, which is helpful for the further understanding of the void growth dynamic behavior.

, authors=Yong-Gang WANG, Hong-Wei LIU, authorsList=Yong-Gang WANG, Hong-Wei LIU, 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=1324025106099483239, articleId=1324025104111383141, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=强冲击载荷下含杂质的纯铝中微孔洞长大的动力学行为, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

采用LS-DYNA瞬态动力学有限元程序,对平板撞击加载下含初始杂质的纯铝样品中微孔洞的成核与长大进行了数值模拟。结果表明:微孔洞首先在杂质与基体的边界处成核,随后在局部严重塑性变形驱动下快速线性增长;微孔洞半径的增长速率与冲击加载强度两者之间近似成线性关系;材料屈服强度和初始杂质的大小对微孔洞相对的增长速率有明显的影响;当微孔洞长大阈值取屈服强度的3.5倍时,数值仿真结果与理论分析结果基本一致,这有助于进一步认识孔洞长大的动力学行为。

, authors=王永刚, 刘宏伟, authorsList=王永刚, 刘宏伟, authorCompany=null, correspAuthors=null, authorNote=

王永刚(1976—),男,博士,副教授,主要从事强动载荷下材料的力学响应研究. E-mail:

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王永刚(1976—),男,博士,副教授,主要从事强动载荷下材料的力学响应研究. E-mail:

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强冲击载荷下含杂质的纯铝中微孔洞长大的动力学行为
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王永刚 , 刘宏伟
高压物理学报 | 2010,24(4): 248-254
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高压物理学报 | 2010 , 24 (4) : 248 -254
强冲击载荷下含杂质的纯铝中微孔洞长大的动力学行为
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王永刚 , 刘宏伟
作者信息
  • 宁波大学力学与材料科学研究中心,浙江 宁波 315211
作者简介:

王永刚(1976—),男,博士,副教授,主要从事强动载荷下材料的力学响应研究. E-mail:

Dynamic Behavior of Void Growth in Aluminum with a Preexisting Flaw under Intense Impact Loading
Yong-Gang WANG , Hong-Wei LIU
Affiliations
  • Mechanics and Materials Science Research Center, Ningbo University, Ningbo 315211, China
出版时间: 2010-08-15
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采用LS-DYNA瞬态动力学有限元程序,对平板撞击加载下含初始杂质的纯铝样品中微孔洞的成核与长大进行了数值模拟。结果表明:微孔洞首先在杂质与基体的边界处成核,随后在局部严重塑性变形驱动下快速线性增长;微孔洞半径的增长速率与冲击加载强度两者之间近似成线性关系;材料屈服强度和初始杂质的大小对微孔洞相对的增长速率有明显的影响;当微孔洞长大阈值取屈服强度的3.5倍时,数值仿真结果与理论分析结果基本一致,这有助于进一步认识孔洞长大的动力学行为。

固体力学  /  微孔洞长大  /  平板撞击  /  纯铝

By means of the explicit nonlinear dynamic finite element computer code LS-DYNA, the nucleation and growth of void in aluminum with a preexisting flaw under plate impact loading have been investigated. The results are as follows: firstly, the void nucleation occurs from the boundary of the preexisting flaw and the ductile matrix, and once the voids have been nucleated, they grow linearly through the localized plastic deformation; secondly, the growth rate of void radius increases linearly with the shock loading amplitude; thirdly, the yield strength and the size of the preexisting flaw have an obvious influence on the relative growth rate of void; finally, if the threshold stress of the void growth is set as 3.5 times of the yield strength, the simulation results agree reasonably well with the theoretical results, which is helpful for the further understanding of the void growth dynamic behavior.

solid mechanics  /  void growth  /  plate impact  /  aluminium
王永刚, 刘宏伟. 强冲击载荷下含杂质的纯铝中微孔洞长大的动力学行为. 高压物理学报, 2010 , 24 (4) : 248 -254 .
Yong-Gang WANG, Hong-Wei LIU. Dynamic Behavior of Void Growth in Aluminum with a Preexisting Flaw under Intense Impact Loading[J]. Chinese Journal of High Pressure Physics, 2010 , 24 (4) : 248 -254 .
  • 宁波市自然科学基金(2008A610046)
  • 国家自然科学基金委员会-中国工程物理研究院NSAF联合基金(10876014)
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2010年第24卷第4期
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  • 接收时间:2009-06-19
  • 首发时间:2026-11-02
  • 出版时间:2010-08-15
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  • 收稿日期:2009-06-19
  • 修回日期:2009-09-16
基金
宁波市自然科学基金(2008A610046)
国家自然科学基金委员会-中国工程物理研究院NSAF联合基金(10876014)
作者信息
    宁波大学力学与材料科学研究中心,浙江 宁波 315211
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2种不同金属材料的力学参数
科
Family
属数
Number of
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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