Test of subcritical crack growth and fracture toughness under water-rock interaction in three types of rocks
The subcritical crack growth and fracture toughness in peridotite, lherzolite and amphibolite were investigated with double torsion test. The results show that water-rock interaction has a significant influence on subcritical crack growth. With water-rock interaction, the crack velocity increases, w...
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| Veröffentlicht in: | Journal of Central South University 2015-02, Vol.22 (2), p.662-668 |
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| creator | 郝瑞卿 李江腾 曹平 刘博 廖峻 |
| description | The subcritical crack growth and fracture toughness in peridotite, lherzolite and amphibolite were investigated with double torsion test. The results show that water-rock interaction has a significant influence on subcritical crack growth. With water-rock interaction, the crack velocity increases, while the stress intensity factor declines, which illustrates that water-rock interaction can decrease the strength of rocks and accelerate the subcritical crack growth. Based on Charlse theory and Hilling Charlse theory, the test data were analyzed by regression and the correlation coefficients were all higher than 0.7, which shows the correlation is significant. This illustrates that both theories can explain the results of tests very well. Therefore, it is believed that the subcritical crack growth attributes to the breaking of chemical bond, which is caused by the combined effect of the tensile stress and the chemical reaction between the material at crack tip and the corrosive agent. Meanwhile, water-rock interaction has a vital effect on fracture toughness. The fracture toughness of samples under atmospheric environment is higher than that of samples immersed in water. And water-rock interaction has larger influence on fracture toughness in amphibolite than that in peridotite and lherzolite. |
| doi_str_mv | 10.1007/s11771-015-2568-9 |
| format | Article |
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The results show that water-rock interaction has a significant influence on subcritical crack growth. With water-rock interaction, the crack velocity increases, while the stress intensity factor declines, which illustrates that water-rock interaction can decrease the strength of rocks and accelerate the subcritical crack growth. Based on Charlse theory and Hilling Charlse theory, the test data were analyzed by regression and the correlation coefficients were all higher than 0.7, which shows the correlation is significant. This illustrates that both theories can explain the results of tests very well. Therefore, it is believed that the subcritical crack growth attributes to the breaking of chemical bond, which is caused by the combined effect of the tensile stress and the chemical reaction between the material at crack tip and the corrosive agent. Meanwhile, water-rock interaction has a vital effect on fracture toughness. The fracture toughness of samples under atmospheric environment is higher than that of samples immersed in water. And water-rock interaction has larger influence on fracture toughness in amphibolite than that in peridotite and lherzolite.</description><identifier>ISSN: 2095-2899</identifier><identifier>EISSN: 2227-5223</identifier><identifier>DOI: 10.1007/s11771-015-2568-9</identifier><language>eng</language><publisher>Heidelberg: Central South University</publisher><subject>Engineering ; Metallic Materials ; 二辉橄榄岩 ; 亚临界裂纹扩展 ; 岩石 ; 应力强度因子 ; 断裂韧性 ; 明水 ; 测试数据 ; 相互作用</subject><ispartof>Journal of Central South University, 2015-02, Vol.22 (2), p.662-668</ispartof><rights>Central South University Press and Springer-Verlag Berlin Heidelberg 2015</rights><rights>Copyright © Wanfang Data Co. Ltd. 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Cent. South Univ</addtitle><addtitle>Journal of Central South University of Technology</addtitle><description>The subcritical crack growth and fracture toughness in peridotite, lherzolite and amphibolite were investigated with double torsion test. The results show that water-rock interaction has a significant influence on subcritical crack growth. With water-rock interaction, the crack velocity increases, while the stress intensity factor declines, which illustrates that water-rock interaction can decrease the strength of rocks and accelerate the subcritical crack growth. Based on Charlse theory and Hilling Charlse theory, the test data were analyzed by regression and the correlation coefficients were all higher than 0.7, which shows the correlation is significant. This illustrates that both theories can explain the results of tests very well. Therefore, it is believed that the subcritical crack growth attributes to the breaking of chemical bond, which is caused by the combined effect of the tensile stress and the chemical reaction between the material at crack tip and the corrosive agent. Meanwhile, water-rock interaction has a vital effect on fracture toughness. The fracture toughness of samples under atmospheric environment is higher than that of samples immersed in water. And water-rock interaction has larger influence on fracture toughness in amphibolite than that in peridotite and lherzolite.</description><subject>Engineering</subject><subject>Metallic Materials</subject><subject>二辉橄榄岩</subject><subject>亚临界裂纹扩展</subject><subject>岩石</subject><subject>应力强度因子</subject><subject>断裂韧性</subject><subject>明水</subject><subject>测试数据</subject><subject>相互作用</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kUtLAzEUhYMoWGp_gLvgVqK5yUwyWUrxBYKbug6ZTOahNVOTGdr6602ZojtX93DznXvgBKFLoDdAqbyNAFICoZATlouCqBM0Y4xJkjPGT5OmKr0USp2jRYxdSTkwwYUSM7ReuTjgvsZxLG3ohs6aNbbB2A_chH47tNj4CtdpMYzB4aEfm9a7GPHoKxfw1gwukNAnvPNJJqzrfdJ4aINL_H7j4uH8AYkX6Kw26-gWxzlHbw_3q-UTeXl9fF7evRDLcxiIsZCxzGZgQVrlSqmgNLKoCpGBLEpmihp4IXJeWSZcmdGKc6ccgDAOWAZ8jq6nu1vja-Mb_d6PwadE_e2bfbXbldqx1BZllPNEw0Tb0McYXK03ofs0Ya-B6kO_eupXJ4c-9KtV8rDJExPrGxf-Iv4zXR2D2t43X8n3myRElqdf4Rn_AYIeinA</recordid><startdate>20150201</startdate><enddate>20150201</enddate><creator>郝瑞卿 李江腾 曹平 刘博 廖峻</creator><general>Central South University</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20150201</creationdate><title>Test of subcritical crack growth and fracture toughness under water-rock interaction in three types of rocks</title><author>郝瑞卿 李江腾 曹平 刘博 廖峻</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c351t-ac1424c41c17c9eb791ba78d864178b2a8f138653dc26eb40d33e9e116ae12413</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Engineering</topic><topic>Metallic Materials</topic><topic>二辉橄榄岩</topic><topic>亚临界裂纹扩展</topic><topic>岩石</topic><topic>应力强度因子</topic><topic>断裂韧性</topic><topic>明水</topic><topic>测试数据</topic><topic>相互作用</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>郝瑞卿 李江腾 曹平 刘博 廖峻</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of Central South University</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>郝瑞卿 李江腾 曹平 刘博 廖峻</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Test of subcritical crack growth and fracture toughness under water-rock interaction in three types of rocks</atitle><jtitle>Journal of Central South University</jtitle><stitle>J. Cent. South Univ</stitle><addtitle>Journal of Central South University of Technology</addtitle><date>2015-02-01</date><risdate>2015</risdate><volume>22</volume><issue>2</issue><spage>662</spage><epage>668</epage><pages>662-668</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>The subcritical crack growth and fracture toughness in peridotite, lherzolite and amphibolite were investigated with double torsion test. The results show that water-rock interaction has a significant influence on subcritical crack growth. With water-rock interaction, the crack velocity increases, while the stress intensity factor declines, which illustrates that water-rock interaction can decrease the strength of rocks and accelerate the subcritical crack growth. Based on Charlse theory and Hilling Charlse theory, the test data were analyzed by regression and the correlation coefficients were all higher than 0.7, which shows the correlation is significant. This illustrates that both theories can explain the results of tests very well. Therefore, it is believed that the subcritical crack growth attributes to the breaking of chemical bond, which is caused by the combined effect of the tensile stress and the chemical reaction between the material at crack tip and the corrosive agent. Meanwhile, water-rock interaction has a vital effect on fracture toughness. The fracture toughness of samples under atmospheric environment is higher than that of samples immersed in water. And water-rock interaction has larger influence on fracture toughness in amphibolite than that in peridotite and lherzolite.</abstract><cop>Heidelberg</cop><pub>Central South University</pub><doi>10.1007/s11771-015-2568-9</doi><tpages>7</tpages></addata></record> |
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| source | Springer Nature - Complete Springer Journals; Alma/SFX Local Collection |
| subjects | Engineering Metallic Materials 二辉橄榄岩 亚临界裂纹扩展 岩石 应力强度因子 断裂韧性 明水 测试数据 相互作用 |
| title | Test of subcritical crack growth and fracture toughness under water-rock interaction in three types of rocks |
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