ISRM-Suggested Method for Determining the Mode I Static Fracture Toughness Using Semi-Circular Bend Specimen
The International Society for Rock Mechanics has so far developed two standard methods for the determination of static fracture toughness of rock. They used three different core based specimens and tests were to be performed on a typical laboratory compression or tension load frame. Another method t...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Springer Wien
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/46814 |
| _version_ | 1848757664818921472 |
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| author | Kuruppu, Mahinda Obara, Yuzo Ayatollahi, Majid Chong, Ken Funatsu, Takahiro |
| author_facet | Kuruppu, Mahinda Obara, Yuzo Ayatollahi, Majid Chong, Ken Funatsu, Takahiro |
| author_sort | Kuruppu, Mahinda |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The International Society for Rock Mechanics has so far developed two standard methods for the determination of static fracture toughness of rock. They used three different core based specimens and tests were to be performed on a typical laboratory compression or tension load frame. Another method to determine the mode I fracture toughness of rock using semicircular bend specimen is herein presented. The specimen is semicircular in shape and made from typical cores taken from the rock with any relative material directions noted. The specimens are tested in three-point bending using a laboratory compression test instrument. The failure load along with its dimensions is used to determine the fracture toughness. Most sedimentary rocks which are layered in structure may exhibit fracture properties that depend on the orientation and therefore measurements in more than one material direction may be necessary. The fracture toughness measurements are expected to yield a size-independent material property if certain minimum specimen size requirements are satisfied. |
| first_indexed | 2025-11-14T09:31:42Z |
| format | Journal Article |
| id | curtin-20.500.11937-46814 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:31:42Z |
| publishDate | 2014 |
| publisher | Springer Wien |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-468142017-09-13T14:01:55Z ISRM-Suggested Method for Determining the Mode I Static Fracture Toughness Using Semi-Circular Bend Specimen Kuruppu, Mahinda Obara, Yuzo Ayatollahi, Majid Chong, Ken Funatsu, Takahiro Fracture testing Mode I fracture toughness Sedimentary rock Semicircular bend specimen Rock fracture mechanics In-situ environment The International Society for Rock Mechanics has so far developed two standard methods for the determination of static fracture toughness of rock. They used three different core based specimens and tests were to be performed on a typical laboratory compression or tension load frame. Another method to determine the mode I fracture toughness of rock using semicircular bend specimen is herein presented. The specimen is semicircular in shape and made from typical cores taken from the rock with any relative material directions noted. The specimens are tested in three-point bending using a laboratory compression test instrument. The failure load along with its dimensions is used to determine the fracture toughness. Most sedimentary rocks which are layered in structure may exhibit fracture properties that depend on the orientation and therefore measurements in more than one material direction may be necessary. The fracture toughness measurements are expected to yield a size-independent material property if certain minimum specimen size requirements are satisfied. 2014 Journal Article http://hdl.handle.net/20.500.11937/46814 10.1007/s00603-013-0422-7 Springer Wien fulltext |
| spellingShingle | Fracture testing Mode I fracture toughness Sedimentary rock Semicircular bend specimen Rock fracture mechanics In-situ environment Kuruppu, Mahinda Obara, Yuzo Ayatollahi, Majid Chong, Ken Funatsu, Takahiro ISRM-Suggested Method for Determining the Mode I Static Fracture Toughness Using Semi-Circular Bend Specimen |
| title | ISRM-Suggested Method for Determining the Mode I Static Fracture Toughness Using Semi-Circular Bend Specimen |
| title_full | ISRM-Suggested Method for Determining the Mode I Static Fracture Toughness Using Semi-Circular Bend Specimen |
| title_fullStr | ISRM-Suggested Method for Determining the Mode I Static Fracture Toughness Using Semi-Circular Bend Specimen |
| title_full_unstemmed | ISRM-Suggested Method for Determining the Mode I Static Fracture Toughness Using Semi-Circular Bend Specimen |
| title_short | ISRM-Suggested Method for Determining the Mode I Static Fracture Toughness Using Semi-Circular Bend Specimen |
| title_sort | isrm-suggested method for determining the mode i static fracture toughness using semi-circular bend specimen |
| topic | Fracture testing Mode I fracture toughness Sedimentary rock Semicircular bend specimen Rock fracture mechanics In-situ environment |
| url | http://hdl.handle.net/20.500.11937/46814 |