DYNAMIC MECHANICAL PROPERTIES OF OXYGEN FREE COPPER UNDER THE IMPACT LOAD
The dynamic mechanical properties of oxygen free copper has been tested under the different strain rate（ 2 500s- 1<sup> </sup>15 500 s- 1） at the room temperature by split Hopkinson pressure bar（ SHPB）,the true stress-true strain curves has been obtained. Power-Law constitutive model and...
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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.1001.9669.2015.04.003 |
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| _version_ | 1841534641499013120 |
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| author | LIU QingFeng CHENG Xin WANG NingChang JIANG Feng |
| author_facet | LIU QingFeng CHENG Xin WANG NingChang JIANG Feng |
| author_sort | LIU QingFeng |
| collection | DOAJ |
| description | The dynamic mechanical properties of oxygen free copper has been tested under the different strain rate（ 2 500s- 1<sup> </sup>15 500 s- 1） at the room temperature by split Hopkinson pressure bar（ SHPB）,the true stress-true strain curves has been obtained. Power-Law constitutive model and Johnson-Cook constitutive model have been built to fit the experimental result from SHPB test of oxygen free copper. The results show that the plastic flow stress of oxygen free copper is not sensitive to the strain rate,however,the yield stress increases obviously and the strain strengthening effect decrease when the the strain rate is higher than 14 000 s- 1. In addition,the Power-Law constitutive model can predict the plastic flow stress of the oxygen free copper more accurately than the Johnson-Cook constitutive model at the high strain rate. |
| format | Article |
| id | doaj-art-0bdffffa59044efea4481ddbbaa5332f |
| 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-0bdffffa59044efea4481ddbbaa5332f2025-01-15T02:38:01ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692015-01-013760761230591996DYNAMIC MECHANICAL PROPERTIES OF OXYGEN FREE COPPER UNDER THE IMPACT LOADLIU QingFengCHENG XinWANG NingChangJIANG FengThe dynamic mechanical properties of oxygen free copper has been tested under the different strain rate（ 2 500s- 1<sup> </sup>15 500 s- 1） at the room temperature by split Hopkinson pressure bar（ SHPB）,the true stress-true strain curves has been obtained. Power-Law constitutive model and Johnson-Cook constitutive model have been built to fit the experimental result from SHPB test of oxygen free copper. The results show that the plastic flow stress of oxygen free copper is not sensitive to the strain rate,however,the yield stress increases obviously and the strain strengthening effect decrease when the the strain rate is higher than 14 000 s- 1. In addition,the Power-Law constitutive model can predict the plastic flow stress of the oxygen free copper more accurately than the Johnson-Cook constitutive model at the high strain rate.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.04.003Oxygen free copperSplit Hopkinson pressure barConstitutive modelImpact compression |
| spellingShingle | LIU QingFeng CHENG Xin WANG NingChang JIANG Feng DYNAMIC MECHANICAL PROPERTIES OF OXYGEN FREE COPPER UNDER THE IMPACT LOAD Jixie qiangdu Oxygen free copper Split Hopkinson pressure bar Constitutive model Impact compression |
| title | DYNAMIC MECHANICAL PROPERTIES OF OXYGEN FREE COPPER UNDER THE IMPACT LOAD |
| title_full | DYNAMIC MECHANICAL PROPERTIES OF OXYGEN FREE COPPER UNDER THE IMPACT LOAD |
| title_fullStr | DYNAMIC MECHANICAL PROPERTIES OF OXYGEN FREE COPPER UNDER THE IMPACT LOAD |
| title_full_unstemmed | DYNAMIC MECHANICAL PROPERTIES OF OXYGEN FREE COPPER UNDER THE IMPACT LOAD |
| title_short | DYNAMIC MECHANICAL PROPERTIES OF OXYGEN FREE COPPER UNDER THE IMPACT LOAD |
| title_sort | dynamic mechanical properties of oxygen free copper under the impact load |
| topic | Oxygen free copper Split Hopkinson pressure bar Constitutive model Impact compression |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.04.003 |
| work_keys_str_mv | AT liuqingfeng dynamicmechanicalpropertiesofoxygenfreecopperundertheimpactload AT chengxin dynamicmechanicalpropertiesofoxygenfreecopperundertheimpactload AT wangningchang dynamicmechanicalpropertiesofoxygenfreecopperundertheimpactload AT jiangfeng dynamicmechanicalpropertiesofoxygenfreecopperundertheimpactload |