Size and Geometry Effects on Rock Fracture Toughness: Mode I Fracture
In this paper, the effects of specimen size and geometry on the apparent mode I fracture toughness ( K c ) of an Iranian white marble (Neyriz) are studied. A number of fracture tests were conducted on center-cracked circular disk (CCCD) specimens with different radii to investigate the size effects...
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| Veröffentlicht in: | Rock mechanics and rock engineering 2014-03, Vol.47 (2), p.677-687 |
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| container_title | Rock mechanics and rock engineering |
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| creator | Ayatollahi, M. R. Akbardoost, J. |
| description | In this paper, the effects of specimen size and geometry on the apparent mode I fracture toughness (
K
c
) of an Iranian white marble (Neyriz) are studied. A number of fracture tests were conducted on center-cracked circular disk (CCCD) specimens with different radii to investigate the size effects on
K
c
. The experimental results demonstrate that the apparent fracture toughness increases in bigger specimens. In order to explain the experimental results, the modified maximum tangential stress (MMTS) criterion is used, where higher order terms of the Williams’ series expansion are included in the maximum tangential stress criterion. It is shown that the MMTS criterion provides good estimates for the apparent fracture toughness of Neyriz marble, obtained from fracture tests of edge-cracked triangular specimens. It is, therefore, concluded that the proposed criterion is able to account for the size and geometry effects on the fracture resistance of rocks simultaneously. |
| doi_str_mv | 10.1007/s00603-013-0430-7 |
| format | Article |
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K
c
) of an Iranian white marble (Neyriz) are studied. A number of fracture tests were conducted on center-cracked circular disk (CCCD) specimens with different radii to investigate the size effects on
K
c
. The experimental results demonstrate that the apparent fracture toughness increases in bigger specimens. In order to explain the experimental results, the modified maximum tangential stress (MMTS) criterion is used, where higher order terms of the Williams’ series expansion are included in the maximum tangential stress criterion. It is shown that the MMTS criterion provides good estimates for the apparent fracture toughness of Neyriz marble, obtained from fracture tests of edge-cracked triangular specimens. It is, therefore, concluded that the proposed criterion is able to account for the size and geometry effects on the fracture resistance of rocks simultaneously.</description><identifier>ISSN: 0723-2632</identifier><identifier>EISSN: 1434-453X</identifier><identifier>DOI: 10.1007/s00603-013-0430-7</identifier><identifier>CODEN: RMREDX</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Applied sciences ; Buildings. Public works ; Civil Engineering ; Criteria ; Disks ; Earth and Environmental Science ; Earth Sciences ; Exact sciences and technology ; Fracture mechanics ; Fracture toughness ; Geological engineering ; Geophysics/Geodesy ; Geotechnics ; Marble ; Original Paper ; Rock ; Rocks ; Series expansion ; Soil mechanics. Rocks mechanics ; Strength of materials (elasticity, plasticity, buckling, etc.) ; Stresses ; Structural analysis. Stresses</subject><ispartof>Rock mechanics and rock engineering, 2014-03, Vol.47 (2), p.677-687</ispartof><rights>Springer-Verlag Wien 2013</rights><rights>2015 INIST-CNRS</rights><rights>Springer-Verlag Wien 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a468t-f8f85297fc67820624ca99371654a47e223899b47b4e10ca29297a8d9919a6c23</citedby><cites>FETCH-LOGICAL-a468t-f8f85297fc67820624ca99371654a47e223899b47b4e10ca29297a8d9919a6c23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00603-013-0430-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00603-013-0430-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,778,782,27907,27908,41471,42540,51302</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28600349$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ayatollahi, M. R.</creatorcontrib><creatorcontrib>Akbardoost, J.</creatorcontrib><title>Size and Geometry Effects on Rock Fracture Toughness: Mode I Fracture</title><title>Rock mechanics and rock engineering</title><addtitle>Rock Mech Rock Eng</addtitle><description>In this paper, the effects of specimen size and geometry on the apparent mode I fracture toughness (
K
c
) of an Iranian white marble (Neyriz) are studied. A number of fracture tests were conducted on center-cracked circular disk (CCCD) specimens with different radii to investigate the size effects on
K
c
. The experimental results demonstrate that the apparent fracture toughness increases in bigger specimens. In order to explain the experimental results, the modified maximum tangential stress (MMTS) criterion is used, where higher order terms of the Williams’ series expansion are included in the maximum tangential stress criterion. It is shown that the MMTS criterion provides good estimates for the apparent fracture toughness of Neyriz marble, obtained from fracture tests of edge-cracked triangular specimens. It is, therefore, concluded that the proposed criterion is able to account for the size and geometry effects on the fracture resistance of rocks simultaneously.</description><subject>Applied sciences</subject><subject>Buildings. Public works</subject><subject>Civil Engineering</subject><subject>Criteria</subject><subject>Disks</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Exact sciences and technology</subject><subject>Fracture mechanics</subject><subject>Fracture toughness</subject><subject>Geological engineering</subject><subject>Geophysics/Geodesy</subject><subject>Geotechnics</subject><subject>Marble</subject><subject>Original Paper</subject><subject>Rock</subject><subject>Rocks</subject><subject>Series expansion</subject><subject>Soil mechanics. Rocks mechanics</subject><subject>Strength of materials (elasticity, plasticity, buckling, etc.)</subject><subject>Stresses</subject><subject>Structural analysis. Stresses</subject><issn>0723-2632</issn><issn>1434-453X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kEtLAzEUhYMoWKs_wF1ABDejN4_Jw52UVoWK4APchZhmaut0UpOZRf31prQUEVxc7uJ853A4CJ0SuCQA8ioBCGAFkHycQSH3UI9wxgtesrd91ANJWUEFo4foKKU5QBal6qHh8-zbY9tM8K0PC9_GFR5WlXdtwqHBT8F94lG0ru2ixy-hm340PqVr_BAmHt_vpGN0UNk6-ZPt76PX0fBlcFeMH2_vBzfjwnKh2qJSlSqplpUTUlEQlDurNZNElNxy6SllSut3Lt-5J-As1Rm2aqI10VY4yvroYpO7jOGr86k1i1lyvq5t40OXDCkpaKqIUBk9-4POQxeb3M4QrpUGWSqSKbKhXAwpRV-ZZZwtbFwZAmY9rNkMa_KwZj2skdlzvk22ydm6irZxs7QzUiUAGNeZoxsuZamZ-virwb_hP5_dhFk</recordid><startdate>20140301</startdate><enddate>20140301</enddate><creator>Ayatollahi, M. 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R. ; Akbardoost, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a468t-f8f85297fc67820624ca99371654a47e223899b47b4e10ca29297a8d9919a6c23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Applied sciences</topic><topic>Buildings. Public works</topic><topic>Civil Engineering</topic><topic>Criteria</topic><topic>Disks</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Exact sciences and technology</topic><topic>Fracture mechanics</topic><topic>Fracture toughness</topic><topic>Geological engineering</topic><topic>Geophysics/Geodesy</topic><topic>Geotechnics</topic><topic>Marble</topic><topic>Original Paper</topic><topic>Rock</topic><topic>Rocks</topic><topic>Series expansion</topic><topic>Soil mechanics. Rocks mechanics</topic><topic>Strength of materials (elasticity, plasticity, buckling, etc.)</topic><topic>Stresses</topic><topic>Structural analysis. Stresses</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ayatollahi, M. 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R.</au><au>Akbardoost, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Size and Geometry Effects on Rock Fracture Toughness: Mode I Fracture</atitle><jtitle>Rock mechanics and rock engineering</jtitle><stitle>Rock Mech Rock Eng</stitle><date>2014-03-01</date><risdate>2014</risdate><volume>47</volume><issue>2</issue><spage>677</spage><epage>687</epage><pages>677-687</pages><issn>0723-2632</issn><eissn>1434-453X</eissn><coden>RMREDX</coden><abstract>In this paper, the effects of specimen size and geometry on the apparent mode I fracture toughness (
K
c
) of an Iranian white marble (Neyriz) are studied. A number of fracture tests were conducted on center-cracked circular disk (CCCD) specimens with different radii to investigate the size effects on
K
c
. The experimental results demonstrate that the apparent fracture toughness increases in bigger specimens. In order to explain the experimental results, the modified maximum tangential stress (MMTS) criterion is used, where higher order terms of the Williams’ series expansion are included in the maximum tangential stress criterion. It is shown that the MMTS criterion provides good estimates for the apparent fracture toughness of Neyriz marble, obtained from fracture tests of edge-cracked triangular specimens. It is, therefore, concluded that the proposed criterion is able to account for the size and geometry effects on the fracture resistance of rocks simultaneously.</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><doi>10.1007/s00603-013-0430-7</doi><tpages>11</tpages></addata></record> |
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| subjects | Applied sciences Buildings. Public works Civil Engineering Criteria Disks Earth and Environmental Science Earth Sciences Exact sciences and technology Fracture mechanics Fracture toughness Geological engineering Geophysics/Geodesy Geotechnics Marble Original Paper Rock Rocks Series expansion Soil mechanics. Rocks mechanics Strength of materials (elasticity, plasticity, buckling, etc.) Stresses Structural analysis. Stresses |
| title | Size and Geometry Effects on Rock Fracture Toughness: Mode I Fracture |
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