FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHES
Whether the brittle fracture criterion of theory of critical distance is suitable for graphite plates with different shape notches was studied by means of analysis of finite element: including tensile specimens with U notches,blunted V-notch specimens of semi-circular bend,three-point bending specim...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2018-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.011 |
| _version_ | 1797767775689637888 |
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| author | LIU XiaoMei BIAN YongMing LIANG YongCheng LI AnHu |
| author_facet | LIU XiaoMei BIAN YongMing LIANG YongCheng LI AnHu |
| author_sort | LIU XiaoMei |
| collection | DOAJ |
| description | Whether the brittle fracture criterion of theory of critical distance is suitable for graphite plates with different shape notches was studied by means of analysis of finite element: including tensile specimens with U notches,blunted V-notch specimens of semi-circular bend,three-point bending specimens with single V-notch and compressed specimens of Brazilian disk.According to the theory of critical distance,the parameters of fracture toughness for two graphite materials were calculated by the calibrated characteristic distance and inherent strength and compared with the given values in the literature. The values of fracture loading for all notches under mode I were predicted and also compared with the experimental values. The theory of critical distance can not only predict the fracture loading and but also provide an engineering method to evaluate the fracture toughness by the fracture experiment of notched components. The theory of critical distance suitable for engineering just makes use of the numerical results,avoiding the complex analytical solutions of stress fields near the tip of notches,which is the best advantage. |
| first_indexed | 2024-03-12T20:43:45Z |
| format | Article |
| id | doaj.art-0ff3e8addc0343f584347264aaa6f7c6 |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2024-03-12T20:43:45Z |
| publishDate | 2018-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-0ff3e8addc0343f584347264aaa6f7c62023-08-01T07:47:08ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692018-01-014057057530601996FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHESLIU XiaoMeiBIAN YongMingLIANG YongChengLI AnHuWhether the brittle fracture criterion of theory of critical distance is suitable for graphite plates with different shape notches was studied by means of analysis of finite element: including tensile specimens with U notches,blunted V-notch specimens of semi-circular bend,three-point bending specimens with single V-notch and compressed specimens of Brazilian disk.According to the theory of critical distance,the parameters of fracture toughness for two graphite materials were calculated by the calibrated characteristic distance and inherent strength and compared with the given values in the literature. The values of fracture loading for all notches under mode I were predicted and also compared with the experimental values. The theory of critical distance can not only predict the fracture loading and but also provide an engineering method to evaluate the fracture toughness by the fracture experiment of notched components. The theory of critical distance suitable for engineering just makes use of the numerical results,avoiding the complex analytical solutions of stress fields near the tip of notches,which is the best advantage.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.011The theory of critical distance;Fracture toughness;Graphite;Notches |
| spellingShingle | LIU XiaoMei BIAN YongMing LIANG YongCheng LI AnHu FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHES Jixie qiangdu The theory of critical distance;Fracture toughness;Graphite;Notches |
| title | FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHES |
| title_full | FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHES |
| title_fullStr | FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHES |
| title_full_unstemmed | FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHES |
| title_short | FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHES |
| title_sort | fracture criterion of the theory of critical distance for notches |
| topic | The theory of critical distance;Fracture toughness;Graphite;Notches |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.011 |
| work_keys_str_mv | AT liuxiaomei fracturecriterionofthetheoryofcriticaldistancefornotches AT bianyongming fracturecriterionofthetheoryofcriticaldistancefornotches AT liangyongcheng fracturecriterionofthetheoryofcriticaldistancefornotches AT lianhu fracturecriterionofthetheoryofcriticaldistancefornotches |