层理方向对含预制裂纹页岩Ⅰ型断裂特性的影响

TD325%TU45; 层状页岩受内部层理方位分布特征的影响,其力学性质常表现出明显的各向异性特征.为了探究层理方向对层状页岩Ⅰ型断裂特性的影响,针对不同层理倾角β、预制裂纹角度为 0°的半圆盘试件开展三点弯曲静态压缩试验和数值模拟试验.试验结果表明,试件的Ⅰ型标准化应力强度因子YⅠ会随着层理倾角的变化呈现出明显的差异性,并与层理倾角呈现出良好的三次函数关系,且仅在层理倾角β为0°和90°时,试件表现为纯Ⅰ型断裂模式,即层理倾角的变化会改变试件的断裂模式.同时,试件的Ⅰ型断裂韧度随着层理倾角的增大而逐渐减小,并与层理倾角呈二次函数关系;当层理倾角与预制裂纹角度垂直时,试件的Ⅰ型断裂韧度最大;而...

Full description

Saved in:
Bibliographic Details
Published in矿业安全与环保 Vol. 51; no. 1; pp. 1 - 6
Main Authors 李勇, 胡双杰, 桂辉高, 孙传猛, 甘涛, 李银
Format Journal Article
LanguageChinese
Published 煤矿灾害动力学与控制国家重点实验室,重庆 400044%重庆大学 资源与安全学院,重庆 400044%中北大学 电气与控制工程学院,山西 太原 030051 01.02.2024
重庆大学 资源与安全学院,重庆 400044
Subjects
shale
裂纹扩展
crack extension
mode Ⅰ fracture
fracture toughness
型断裂
页岩
断裂韧度
扩展有限元法
层理方向
bedding direction
XFEM
Online AccessGet full text
ISSN1008-4495
DOI10.19835/j.issn.1008-4495.20230316

Cover

Abstract TD325%TU45; 层状页岩受内部层理方位分布特征的影响,其力学性质常表现出明显的各向异性特征.为了探究层理方向对层状页岩Ⅰ型断裂特性的影响,针对不同层理倾角β、预制裂纹角度为 0°的半圆盘试件开展三点弯曲静态压缩试验和数值模拟试验.试验结果表明,试件的Ⅰ型标准化应力强度因子YⅠ会随着层理倾角的变化呈现出明显的差异性,并与层理倾角呈现出良好的三次函数关系,且仅在层理倾角β为0°和90°时,试件表现为纯Ⅰ型断裂模式,即层理倾角的变化会改变试件的断裂模式.同时,试件的Ⅰ型断裂韧度随着层理倾角的增大而逐渐减小,并与层理倾角呈二次函数关系;当层理倾角与预制裂纹角度垂直时,试件的Ⅰ型断裂韧度最大;而当层理倾角和预制裂纹角度平行时,试件的Ⅰ型断裂韧度最小.另外,基于扩展有限元法(XFEM),对半圆盘层状页岩试件的破断机制进行研究,验证了试验和计算结果的准确性.
AbstractList TD325%TU45; 层状页岩受内部层理方位分布特征的影响,其力学性质常表现出明显的各向异性特征.为了探究层理方向对层状页岩Ⅰ型断裂特性的影响,针对不同层理倾角β、预制裂纹角度为 0°的半圆盘试件开展三点弯曲静态压缩试验和数值模拟试验.试验结果表明,试件的Ⅰ型标准化应力强度因子YⅠ会随着层理倾角的变化呈现出明显的差异性,并与层理倾角呈现出良好的三次函数关系,且仅在层理倾角β为0°和90°时,试件表现为纯Ⅰ型断裂模式,即层理倾角的变化会改变试件的断裂模式.同时,试件的Ⅰ型断裂韧度随着层理倾角的增大而逐渐减小,并与层理倾角呈二次函数关系;当层理倾角与预制裂纹角度垂直时,试件的Ⅰ型断裂韧度最大;而当层理倾角和预制裂纹角度平行时,试件的Ⅰ型断裂韧度最小.另外,基于扩展有限元法(XFEM),对半圆盘层状页岩试件的破断机制进行研究,验证了试验和计算结果的准确性.
Abstract_FL The mechanical properties of layered shales are usually anisotropic due to the influence of internal bedding azimuths.In order to explore the influence of bedding direction mode Ⅰ fracture characteristics,three point bending static compression tests and numerical simulation tests were carried out on half-disc specimens with precrack angles of 0° and different bedding dip angle β.The test results show that the mode Ⅰ standardized stress intensity factor of the specimen YⅠ varies significantly with the change of bedding angle,and presents a good cubic function relationship with bedding angle;only when the bedding angle β is 0° or 90°,the specimen shows a pure mode Ⅰ fracture mode,that is,the change of bedding angle will change the fracture mode of the specimen.At the same time,the mode Ⅰ fracture toughness of specimens decreases gradually with the increase of bedding angle,and presents a quadratic function relationship with bedding angle.When the bedding angle is perpendicular to the precrack angle,the mode Ⅰ fracture toughness of the specimen is the largest.When the bedding angle is parallel to the precrack angle,the mode Ⅰ fracture toughness of the specimen is the smallest.In addition,based on the extended finite element method(XFEM),the fracture mechanism of the half-disc layered shale specimen is studied,and the accuracy of the test and calculation results is verified.
Author 桂辉高
胡双杰
孙传猛
李勇
李银
甘涛
AuthorAffiliation 重庆大学 资源与安全学院,重庆 400044;煤矿灾害动力学与控制国家重点实验室,重庆 400044%重庆大学 资源与安全学院,重庆 400044%中北大学 电气与控制工程学院,山西 太原 030051
AuthorAffiliation_xml – name: 重庆大学 资源与安全学院,重庆 400044;煤矿灾害动力学与控制国家重点实验室,重庆 400044%重庆大学 资源与安全学院,重庆 400044%中北大学 电气与控制工程学院,山西 太原 030051
Author_FL HU Shuangjie
LI Yong
GUI Huigao
SUN Chuanmeng
GAN Tao
LI Yin
Author_FL_xml – sequence: 1
  fullname: LI Yong
– sequence: 2
  fullname: HU Shuangjie
– sequence: 3
  fullname: GUI Huigao
– sequence: 4
  fullname: SUN Chuanmeng
– sequence: 5
  fullname: GAN Tao
– sequence: 6
  fullname: LI Yin
Author_xml – sequence: 1
  fullname: 李勇
– sequence: 2
  fullname: 胡双杰
– sequence: 3
  fullname: 桂辉高
– sequence: 4
  fullname: 孙传猛
– sequence: 5
  fullname: 甘涛
– sequence: 6
  fullname: 李银
BookMark eNrjYmDJy89LZWBQMjTQM7S0MDbVz9LLLC7O0zM0MLDQNTGxNNUzMjAyNjA2NGNh4IQLcjDwFhdnJhkYmJmamZiamnMy2D_d2PR8QtuzaTufTpj4dD2QXP1yUcvTjm0vFjc937Xz5cKtTzetfNS64Om87mfT1oIEO3c-a1j-fFbL070bn07u5WFgTUvMKU7lhdLcDKFuriHOHro-_u6ezo4-usWGQEfoGiebJZsYGyZaGppaJCcbpJgmm5slAnkpaZZpqRZJKZYGyYnJ5kapZqamZoZJBmlJlikWBgbmhuZplsbJiYlmxtwMGhBzyxPz0hLz0uOz8kuL8oA2xmdXJhZWZiQBvWtiAPSooTEAzwll6w
ClassificationCodes TD325%TU45
ContentType Journal Article
Copyright Copyright © Wanfang Data Co. Ltd. All Rights Reserved.
Copyright_xml – notice: Copyright © Wanfang Data Co. Ltd. All Rights Reserved.
DBID 2B.
4A8
92I
93N
PSX
TCJ
DOI 10.19835/j.issn.1008-4495.20230316
DatabaseName Wanfang Data Journals - Hong Kong
WANFANG Data Centre
Wanfang Data Journals
万方数据期刊 - 香港版
China Online Journals (COJ)
China Online Journals (COJ)
DatabaseTitleList
DeliveryMethod fulltext_linktorsrc
DocumentTitle_FL Effect of bedding direction on mode Ⅰ fracture characteristics of precrack shale
EndPage 6
ExternalDocumentID kyaqyhb202401001
GrantInformation_xml – fundername: (国家重点研发计划); (重庆市自然科学基金面上项目); (山西省基础研究计划面上项目); (中央高校基本科研业务费项目)
  funderid: (国家重点研发计划); (重庆市自然科学基金面上项目); (山西省基础研究计划面上项目); (中央高校基本科研业务费项目)
GroupedDBID 2B.
4A8
92I
93N
ALMA_UNASSIGNED_HOLDINGS
GROUPED_DOAJ
PSX
TCJ
ID FETCH-LOGICAL-s1031-3c6c431a9158cc0d5c76aa91df9fe8bd90cac72e65561b0fb9d800717f93caa63
ISSN 1008-4495
IngestDate Thu May 29 04:06:59 EDT 2025
IsPeerReviewed false
IsScholarly true
Issue 1
Keywords shale
裂纹扩展
crack extension
mode Ⅰ fracture
fracture toughness
型断裂
页岩
断裂韧度
扩展有限元法
层理方向
bedding direction
XFEM
Language Chinese
LinkModel OpenURL
MergedId FETCHMERGED-LOGICAL-s1031-3c6c431a9158cc0d5c76aa91df9fe8bd90cac72e65561b0fb9d800717f93caa63
PageCount 6
ParticipantIDs wanfang_journals_kyaqyhb202401001
PublicationCentury 2000
PublicationDate 2024-02-01
PublicationDateYYYYMMDD 2024-02-01
PublicationDate_xml – month: 02
  year: 2024
  text: 2024-02-01
  day: 01
PublicationDecade 2020
PublicationTitle 矿业安全与环保
PublicationTitle_FL Mining Safety & Environmental Protection
PublicationYear 2024
Publisher 煤矿灾害动力学与控制国家重点实验室,重庆 400044%重庆大学 资源与安全学院,重庆 400044%中北大学 电气与控制工程学院,山西 太原 030051
重庆大学 资源与安全学院,重庆 400044
Publisher_xml – name: 煤矿灾害动力学与控制国家重点实验室,重庆 400044%重庆大学 资源与安全学院,重庆 400044%中北大学 电气与控制工程学院,山西 太原 030051
– name: 重庆大学 资源与安全学院,重庆 400044
SSID ssib006564557
ssj0002925396
ssib036434754
ssib001105362
ssib000270141
ssib051374764
Score 2.3728313
Snippet TD325%TU45; 层状页岩受内部层理方位分布特征的影响,其力学性质常表现出明显的各向异性特征.为了探究层理方向对层状页岩Ⅰ型断裂特性的影响,针对不同层理倾角β、预制裂纹角...
SourceID wanfang
SourceType Aggregation Database
StartPage 1
Title 层理方向对含预制裂纹页岩Ⅰ型断裂特性的影响
URI https://d.wanfangdata.com.cn/periodical/kyaqyhb202401001
Volume 51
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
journalDatabaseRights – providerCode: PRVAON
  databaseName: DOAJ Directory of Open Access Journals
  issn: 1008-4495
  databaseCode: DOA
  dateStart: 20230101
  customDbUrl:
  isFulltext: true
  dateEnd: 99991231
  titleUrlDefault: https://www.doaj.org/
  omitProxy: true
  ssIdentifier: ssj0002925396
  providerName: Directory of Open Access Journals
link http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV1LaxRBEB5ivHgRRcU3EezTsnFe3dN9ku7dGYKgpwRyCzOzOwaEFc3mkJwkRFFEiAg5eBAfBxERiaAQwT8jTGLu_gCrajs7Yx4avQy93dVVX1X1TFfP1nQ7zmWupMrhDmymMuN4hJnblKnKmoXwBITbEPFG-IHz9RtiYiq8Ns2nR0Z_1rKW5vvZeL6453cl_-NVqAO_4ley_-DZIVOogDL4F67gYbgeyMcs5sx4TPosjphymRQsFkwJZhQ2QY3ysKCTqkYbFiumfSZDrJGSGeglmQ4sH6OJGGg8ZjiJ8JlWlBUBrFziEzNprCzd_q27VNRdYAqFjgiYtrJMG9FidyBu18NiIgOQCYtDZiR2QdgxckOQUJa2ScYkJUalsCZhapi0TIjaRMIRYDXJIkQZoErYkjDZsrTGrXfWA2OCTQaiFZpLyYqEo7pKkeQWGSNCXsrU35744XbCtR3vRAVdw5qeUOOhmIGeJiBgmvSkgjJWmhY1zQVpHtU8x5ESLGv5CAQtgXmbRPjW8dAEPkN9NOlONYDHb9XoOfpeikZIf8Azn-9uo56hRUDgGmQuTi4WSARjrMK724lDnRTaEcbh3yAQL01taOloTwhg1pBGK0Bwsfxnk5mIaY69AJE0-4CiewsHrERikzS2JdPgBKYqabh4DoNXm9kxzycMBye6bk_9FcHwETeYx71aQCj2jDQULF0o1EDu40Pu4z4u6gNvx_buFDDeWkjvLMxmOAxd3PrskHPYh1jErb0IsrkAmH1dLWpgCRTUNvUUuAFUlasQwJoijKpFAfeCKIzsSxCMR33l84AOKhyitLsvow5X9tWAPmPsFWnvZi3injzmHLVL5TE9eO4dd0YWZ084V8u1pc2VBxur6-XK0_IjXN9vvV4uH3758WZp8-v61qvP5ad33--_LF883lj9gJWP1jfuvd18vlx-WyufPTnpTCXxZGuiaQ-Bac7hCTTNIBc5LHJS5XGZ526H55FI4VenUEVXZh3l5mke-V2B5_xmbpGpjqTcokIFeZqK4JQz2rvd6552xgovTYscJqUOvoYJVMazPOimHHj53agozjiXrMIz9iE_N7PTZ2cPQHPOOVI9as47o_27890LsHTpZxfJ078AHxHinA
linkProvider Directory of Open Access Journals
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=%E5%B1%82%E7%90%86%E6%96%B9%E5%90%91%E5%AF%B9%E5%90%AB%E9%A2%84%E5%88%B6%E8%A3%82%E7%BA%B9%E9%A1%B5%E5%B2%A9%E2%85%A0%E5%9E%8B%E6%96%AD%E8%A3%82%E7%89%B9%E6%80%A7%E7%9A%84%E5%BD%B1%E5%93%8D&rft.jtitle=%E7%9F%BF%E4%B8%9A%E5%AE%89%E5%85%A8%E4%B8%8E%E7%8E%AF%E4%BF%9D&rft.au=%E6%9D%8E%E5%8B%87&rft.au=%E8%83%A1%E5%8F%8C%E6%9D%B0&rft.au=%E6%A1%82%E8%BE%89%E9%AB%98&rft.au=%E5%AD%99%E4%BC%A0%E7%8C%9B&rft.date=2024-02-01&rft.pub=%E7%85%A4%E7%9F%BF%E7%81%BE%E5%AE%B3%E5%8A%A8%E5%8A%9B%E5%AD%A6%E4%B8%8E%E6%8E%A7%E5%88%B6%E5%9B%BD%E5%AE%B6%E9%87%8D%E7%82%B9%E5%AE%9E%E9%AA%8C%E5%AE%A4%2C%E9%87%8D%E5%BA%86+400044%25%E9%87%8D%E5%BA%86%E5%A4%A7%E5%AD%A6+%E8%B5%84%E6%BA%90%E4%B8%8E%E5%AE%89%E5%85%A8%E5%AD%A6%E9%99%A2%2C%E9%87%8D%E5%BA%86+400044%25%E4%B8%AD%E5%8C%97%E5%A4%A7%E5%AD%A6+%E7%94%B5%E6%B0%94%E4%B8%8E%E6%8E%A7%E5%88%B6%E5%B7%A5%E7%A8%8B%E5%AD%A6%E9%99%A2%2C%E5%B1%B1%E8%A5%BF+%E5%A4%AA%E5%8E%9F+030051&rft.issn=1008-4495&rft.volume=51&rft.issue=1&rft.spage=1&rft.epage=6&rft_id=info:doi/10.19835%2Fj.issn.1008-4495.20230316&rft.externalDocID=kyaqyhb202401001
thumbnail_s http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fwww.wanfangdata.com.cn%2Fimages%2FPeriodicalImages%2Fkyaqyhb%2Fkyaqyhb.jpg