Article(id=1223185969495528100, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223185958363841064, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221300, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1653235200000, receivedDateStr=2022-05-23, revisedDate=1657123200000, revisedDateStr=2022-07-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1769559860824, onlineDateStr=2026-01-28, pubDate=1679673600000, pubDateStr=2023-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769559860824, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769559860824, creator=13701087609, updateTime=1769559860824, updator=13701087609, issue=Issue{id=1223185958363841064, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='3', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769559858149, creator=13701087609, updateTime=1769561242661, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223191765415477785, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223185958363841064, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223191765415477786, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223185958363841064, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=136, endPage=139, ext={EN=ArticleExt(id=1223185971215192818, articleId=1223185969495528100, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Application of Material Point Method in Numerical Simulation of Rock Fracture, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

The existence of fissures seriously affects the stability performance of rock structures, and how to reasonably describe the characteristic change law of nonlinear mechanics of rocks containing fissures has been an important research point in recent years. Based on this background, a smooth particle dynamics numerical simulation method (RSMPM) is proposed considering material point failure. The RSMPM was based on the basic calculation principle of the MPM algorithm, the Mohr-Coulomb damage criterion was adopted to traverse all material points in each calculation step, and the failure process was carried out for the material points that reach the damage condition. The dynamic fracture process of the rock was described by the failure process of the material points. The accuracy of the proposed numerical simulation method was verified by comparing the numerical simulation results (crack extension process, main stress cloud distribution) of single crack standard cube specimens and single crack Brazilian disc specimens with previous research results. The research results provide a certain reference for the application of smooth particle dynamics methods in rock mechanics engineering and the understanding of rock fracture mechanisms.

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裂隙的存在严重影响了岩体结构稳定,合理描述含裂隙岩石的非线性力学特性的变化规律是近些年研究的重难点。对此,提出了一种考虑质点失效的光滑粒子动力学数值模拟方法(RSMPM)。RSMPM依据MPM算法的基本原理,采用摩尔—库伦破坏准则,在每一计算步中均遍历所有质点,对达到破坏条件的质点进行失效处理,以质点的失效过程来描述岩石的动态断裂过程。通过将单裂隙标准立方体试样、单裂隙巴西圆盘试样的数值模拟结果(裂纹扩展过程、主应力云图分布)与以往研究成果的对比验证了所提方法的准确性,为光滑粒子动力学方法在岩石力学工程中的应用及岩石断裂机理的认识提供了参考。

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许韬(1980-),男,硕士、正高级工程师,研究方向为水电工程设计,E-mail:
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高懿伟(1995-),男,博士研究生,研究方向为水工结构工程,E-mail:

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高懿伟(1995-),男,博士研究生,研究方向为水工结构工程,E-mail:

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高懿伟(1995-),男,博士研究生,研究方向为水工结构工程,E-mail:

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物质点法在岩石断裂数值模拟中的应用
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高懿伟 1 , 许韬 2 , 顾洪炎 2 , 任旭华 1 , 张继勋 1 , 张辉 1
水电能源科学 | 水利水电工程 2023,41(3): 136-139
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水电能源科学 | 水利水电工程 2023, 41(3): 136-139
物质点法在岩石断裂数值模拟中的应用
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高懿伟1 , 许韬2 , 顾洪炎2, 任旭华1, 张继勋1, 张辉1
作者信息
  • 1.河海大学水利水电学院,江苏 南京 210098
  • 2.中国电建集团成都勘测设计研究院有限公司,四川 成都 610072
  • 高懿伟(1995-),男,博士研究生,研究方向为水工结构工程,E-mail:

通讯作者:

许韬(1980-),男,硕士、正高级工程师,研究方向为水电工程设计,E-mail:
Application of Material Point Method in Numerical Simulation of Rock Fracture
Yi-wei GAO1 , Tao XU2 , Hong-yan GU2, Xu-hua REN1, Ji-xun ZHANG1, Hui ZHANG1
Affiliations
  • 1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
  • 2.PowerChina Chengdu Engineering Corporation Limited, Chengdu 610072, China
出版时间: 2023-03-25 doi: 10.20040/j.cnki.1000-7709.2023.20221300
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裂隙的存在严重影响了岩体结构稳定,合理描述含裂隙岩石的非线性力学特性的变化规律是近些年研究的重难点。对此,提出了一种考虑质点失效的光滑粒子动力学数值模拟方法(RSMPM)。RSMPM依据MPM算法的基本原理,采用摩尔—库伦破坏准则,在每一计算步中均遍历所有质点,对达到破坏条件的质点进行失效处理,以质点的失效过程来描述岩石的动态断裂过程。通过将单裂隙标准立方体试样、单裂隙巴西圆盘试样的数值模拟结果(裂纹扩展过程、主应力云图分布)与以往研究成果的对比验证了所提方法的准确性,为光滑粒子动力学方法在岩石力学工程中的应用及岩石断裂机理的认识提供了参考。

RSMPM  /  数值模拟  /  裂纹扩展  /  断裂力学

The existence of fissures seriously affects the stability performance of rock structures, and how to reasonably describe the characteristic change law of nonlinear mechanics of rocks containing fissures has been an important research point in recent years. Based on this background, a smooth particle dynamics numerical simulation method (RSMPM) is proposed considering material point failure. The RSMPM was based on the basic calculation principle of the MPM algorithm, the Mohr-Coulomb damage criterion was adopted to traverse all material points in each calculation step, and the failure process was carried out for the material points that reach the damage condition. The dynamic fracture process of the rock was described by the failure process of the material points. The accuracy of the proposed numerical simulation method was verified by comparing the numerical simulation results (crack extension process, main stress cloud distribution) of single crack standard cube specimens and single crack Brazilian disc specimens with previous research results. The research results provide a certain reference for the application of smooth particle dynamics methods in rock mechanics engineering and the understanding of rock fracture mechanisms.

RSMPM  /  numerical simulation  /  crack expansion  /  fracture mechanics
高懿伟, 许韬, 顾洪炎, 任旭华, 张继勋, 张辉. 物质点法在岩石断裂数值模拟中的应用. 水电能源科学, 2023 , 41 (3) : 136 -139 . DOI: 10.20040/j.cnki.1000-7709.2023.20221300
Yi-wei GAO, Tao XU, Hong-yan GU, Xu-hua REN, Ji-xun ZHANG, Hui ZHANG. Application of Material Point Method in Numerical Simulation of Rock Fracture[J]. Water Resources and Power, 2023 , 41 (3) : 136 -139 . DOI: 10.20040/j.cnki.1000-7709.2023.20221300
  • 云南省重大科技专项计划项目(202102AF080001)
  • 中央高校基本科研业务费专项资金项目(B2Z0204001)
  • 电建集团成勘院科技专项(821019716)
2023年第41卷第3期
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doi: 10.20040/j.cnki.1000-7709.2023.20221300
  • 接收时间:2022-05-23
  • 首发时间:2026-01-28
  • 出版时间:2023-03-25
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出版历史
  • 收稿日期:2022-05-23
  • 修回日期:2022-07-07
基金
云南省重大科技专项计划项目(202102AF080001)
中央高校基本科研业务费专项资金项目(B2Z0204001)
电建集团成勘院科技专项(821019716)
作者信息
    1.河海大学水利水电学院,江苏 南京 210098
    2.中国电建集团成都勘测设计研究院有限公司,四川 成都 610072

通讯作者:

许韬(1980-),男,硕士、正高级工程师,研究方向为水电工程设计,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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