Article(id=1325114945964212418, 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=1287331200000, receivedDateStr=2010-10-18, revisedDate=1295884800000, revisedDateStr=2011-01-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1793861622562, onlineDateStr=2026-11-05, pubDate=1339689600000, pubDateStr=2012-06-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793861622562, onlineIssueDateStr=2026-11-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793861622562, creator=13701087609, updateTime=1793861622562, 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=294, endPage=300, ext={EN=ArticleExt(id=1325114946312339651, articleId=1325114945964212418, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Modeling of Dynamic Tensile Fracture Accounting for Micro-Inertia Effect on Void Growth, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Axisymmetric unit cell model calculations are used to study void growth in a material containing a periodic array of spherical voids under different loading rate rates. Numerical results show that: (1) Micro-inertia is found to have a strong stabilizing effect on void growth process; (2) The growth rate of void increases with the square root of mean stress; (3) Accounting for micro-inertia effect on void growth and percolation stress relaxation during the void-coalescence process, a simple dynamic damage evolution model is proposed for elastic-rigid-perfectly plastic materials; (4) By using of the proposed model the spall tests on copper under different impact velocities are simulated, and the numerical predictions are in good agreement with the experimental measurements, verifying the model applicability.

, authors=Huan-Ran WANG1, Yong-Gang WANG1, Hong-Liang HE2, authorsList=Huan-Ran WANG, Yong-Gang WANG, Hong-Liang HE, authorCompany=null, correspAuthors=Yong-Gang WANG, 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=1325114946538832068, articleId=1325114945964212418, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=基于微孔洞长大惯性机制的动态拉伸断裂模型构建, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

采用圆柱体胞模型分析方法,对球形微孔洞在不同加载应变率条件下的动力学响应行为进行了有限元分析,计算结果表明:在微孔洞稳定增长阶段,惯性对微孔洞的快速增长起着关键性作用,其它因素的影响基本可以忽略,微孔洞半径增长率与平均应力的平方根成正比。提出了一个微孔洞增长惯性机制的损伤度演化方程,结合逾渗软化函数描述微孔洞聚集行为,从而构建了一个新的动态拉伸断裂模型,并通过自定义材料模型子程序,把断裂模型嵌入LS-DYNA程序中,对无氧铜平板撞击层裂实验进行了数值模拟研究,计算结果与实验结果的比较令人满意,初步检验了新模型的实用性。

, authors=王焕然1, 王永刚1, 贺红亮2, authorsList=王焕然, 王永刚, 贺红亮, authorCompany=null, correspAuthors=王永刚, authorNote=

王焕然(1976—),男,硕士,实验师,主要从事材料动态力学响应研究. E-mail:

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王永刚(1976—),男,博士,副教授,主要从事材料动态力学响应研究. E-mail:
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基于微孔洞长大惯性机制的动态拉伸断裂模型构建
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王焕然 1 , 王永刚 1 , 贺红亮 2
高压物理学报 | 2012,26(3): 294-300
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高压物理学报 | 2012 , 26 (3) : 294 -300
基于微孔洞长大惯性机制的动态拉伸断裂模型构建
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王焕然1 , 王永刚1 , 贺红亮2
作者信息
  • 1.宁波大学工学院力学与材料研究中心,浙江 宁波 315211
  • 2.中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川 绵阳 621900
通讯作者:
王永刚(1976—),男,博士,副教授,主要从事材料动态力学响应研究. E-mail:
作者简介:

王焕然(1976—),男,硕士,实验师,主要从事材料动态力学响应研究. E-mail:

Modeling of Dynamic Tensile Fracture Accounting for Micro-Inertia Effect on Void Growth
Huan-Ran WANG1 , Yong-Gang WANG1 , Hong-Liang HE2
Affiliations
  • 1.Mechanics and Materials Science Research Center, Ningbo University, Ningbo 315211, China
  • 2.National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China
出版时间: 2012-06-15
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采用圆柱体胞模型分析方法,对球形微孔洞在不同加载应变率条件下的动力学响应行为进行了有限元分析,计算结果表明:在微孔洞稳定增长阶段,惯性对微孔洞的快速增长起着关键性作用,其它因素的影响基本可以忽略,微孔洞半径增长率与平均应力的平方根成正比。提出了一个微孔洞增长惯性机制的损伤度演化方程,结合逾渗软化函数描述微孔洞聚集行为,从而构建了一个新的动态拉伸断裂模型,并通过自定义材料模型子程序,把断裂模型嵌入LS-DYNA程序中,对无氧铜平板撞击层裂实验进行了数值模拟研究,计算结果与实验结果的比较令人满意,初步检验了新模型的实用性。

固体力学  /  微孔洞长大  /  惯性  /  动态拉伸断裂

Axisymmetric unit cell model calculations are used to study void growth in a material containing a periodic array of spherical voids under different loading rate rates. Numerical results show that: (1) Micro-inertia is found to have a strong stabilizing effect on void growth process; (2) The growth rate of void increases with the square root of mean stress; (3) Accounting for micro-inertia effect on void growth and percolation stress relaxation during the void-coalescence process, a simple dynamic damage evolution model is proposed for elastic-rigid-perfectly plastic materials; (4) By using of the proposed model the spall tests on copper under different impact velocities are simulated, and the numerical predictions are in good agreement with the experimental measurements, verifying the model applicability.

solid mechanics  /  void growth  /  micro-inertia effect  /  dynamic tensile fracture
王焕然, 王永刚, 贺红亮. 基于微孔洞长大惯性机制的动态拉伸断裂模型构建. 高压物理学报, 2012 , 26 (3) : 294 -300 .
Huan-Ran WANG, Yong-Gang WANG, Hong-Liang HE. Modeling of Dynamic Tensile Fracture Accounting for Micro-Inertia Effect on Void Growth[J]. Chinese Journal of High Pressure Physics, 2012 , 26 (3) : 294 -300 .
  • 国家自然科学基金(11072119)
  • 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)
  • 国防基础科研计划(B1520110003)
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2012年第26卷第3期
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  • 接收时间:2010-10-18
  • 首发时间:2026-11-05
  • 出版时间:2012-06-15
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出版历史
  • 收稿日期:2010-10-18
  • 修回日期:2011-01-25
基金
国家自然科学基金(11072119)
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)
国防基础科研计划(B1520110003)
作者信息
    1.宁波大学工学院力学与材料研究中心,浙江 宁波 315211
    2.中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川 绵阳 621900

通讯作者:

王永刚(1976—),男,博士,副教授,主要从事材料动态力学响应研究. E-mail:
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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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