STUDY ON THE EXPERIMENTAL TECHNIQUES OF DYNAMIC FRACTURE TOUGHNESS OF MATERIALS BASED ON INSTRUMENTED CHARPY IMPACT TEST
A measuring method was proposed to evaluate the dynamic fracture toughness of materials using pre-cracked Charpy impact specimens in this work. Different from the previous methods,a simple way to calculate the dynamic stress intensity factors of three-point bending specimen was developed based on th...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2015-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.01.006 |
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| author | XU ZhenQi ZHU ShiFan GUO ChunHuan WANG YanChun JIANG FengChun |
| author_facet | XU ZhenQi ZHU ShiFan GUO ChunHuan WANG YanChun JIANG FengChun |
| author_sort | XU ZhenQi |
| collection | DOAJ |
| description | A measuring method was proposed to evaluate the dynamic fracture toughness of materials using pre-cracked Charpy impact specimens in this work. Different from the previous methods,a simple way to calculate the dynamic stress intensity factors of three-point bending specimen was developed based on the calculation of fracture specimen’s stiffness using Timoshenko beam theory. The fracture initiation time was detected experimentally and then used to determine the dynamic fracture toughness of materials. The calculated values were compared with the results obtained from finite element simulation,a good agreement was found from the comparison between the theoretical calculation and FEA,indicating that the current method proposed in this study is accurate,reliable and convenient for engineering application. |
| format | Article |
| id | doaj-art-af7afd4a15ec4d198f3bb89a998e1c74 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2015-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-af7afd4a15ec4d198f3bb89a998e1c742025-01-15T02:39:01ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692015-01-013714915330590780STUDY ON THE EXPERIMENTAL TECHNIQUES OF DYNAMIC FRACTURE TOUGHNESS OF MATERIALS BASED ON INSTRUMENTED CHARPY IMPACT TESTXU ZhenQiZHU ShiFanGUO ChunHuanWANG YanChunJIANG FengChunA measuring method was proposed to evaluate the dynamic fracture toughness of materials using pre-cracked Charpy impact specimens in this work. Different from the previous methods,a simple way to calculate the dynamic stress intensity factors of three-point bending specimen was developed based on the calculation of fracture specimen’s stiffness using Timoshenko beam theory. The fracture initiation time was detected experimentally and then used to determine the dynamic fracture toughness of materials. The calculated values were compared with the results obtained from finite element simulation,a good agreement was found from the comparison between the theoretical calculation and FEA,indicating that the current method proposed in this study is accurate,reliable and convenient for engineering application.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.01.006Instrumented Charpy impact testDynamic fracture toughnessThree-point bending specimenFinite element analysis |
| spellingShingle | XU ZhenQi ZHU ShiFan GUO ChunHuan WANG YanChun JIANG FengChun STUDY ON THE EXPERIMENTAL TECHNIQUES OF DYNAMIC FRACTURE TOUGHNESS OF MATERIALS BASED ON INSTRUMENTED CHARPY IMPACT TEST Jixie qiangdu Instrumented Charpy impact test Dynamic fracture toughness Three-point bending specimen Finite element analysis |
| title | STUDY ON THE EXPERIMENTAL TECHNIQUES OF DYNAMIC FRACTURE TOUGHNESS OF MATERIALS BASED ON INSTRUMENTED CHARPY IMPACT TEST |
| title_full | STUDY ON THE EXPERIMENTAL TECHNIQUES OF DYNAMIC FRACTURE TOUGHNESS OF MATERIALS BASED ON INSTRUMENTED CHARPY IMPACT TEST |
| title_fullStr | STUDY ON THE EXPERIMENTAL TECHNIQUES OF DYNAMIC FRACTURE TOUGHNESS OF MATERIALS BASED ON INSTRUMENTED CHARPY IMPACT TEST |
| title_full_unstemmed | STUDY ON THE EXPERIMENTAL TECHNIQUES OF DYNAMIC FRACTURE TOUGHNESS OF MATERIALS BASED ON INSTRUMENTED CHARPY IMPACT TEST |
| title_short | STUDY ON THE EXPERIMENTAL TECHNIQUES OF DYNAMIC FRACTURE TOUGHNESS OF MATERIALS BASED ON INSTRUMENTED CHARPY IMPACT TEST |
| title_sort | study on the experimental techniques of dynamic fracture toughness of materials based on instrumented charpy impact test |
| topic | Instrumented Charpy impact test Dynamic fracture toughness Three-point bending specimen Finite element analysis |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.01.006 |
| work_keys_str_mv | AT xuzhenqi studyontheexperimentaltechniquesofdynamicfracturetoughnessofmaterialsbasedoninstrumentedcharpyimpacttest AT zhushifan studyontheexperimentaltechniquesofdynamicfracturetoughnessofmaterialsbasedoninstrumentedcharpyimpacttest AT guochunhuan studyontheexperimentaltechniquesofdynamicfracturetoughnessofmaterialsbasedoninstrumentedcharpyimpacttest AT wangyanchun studyontheexperimentaltechniquesofdynamicfracturetoughnessofmaterialsbasedoninstrumentedcharpyimpacttest AT jiangfengchun studyontheexperimentaltechniquesofdynamicfracturetoughnessofmaterialsbasedoninstrumentedcharpyimpacttest |