MODIFICATION OF DYNAMIC CONSTITUTIVE RELATION OF440C STAINLESS STEEL BASED ON J-C MODEL (MT)
In order to construct a constitutive model that reasonably describes the changing relationship of flow stress of 440C stainless steel, quasi-static and dynamic compression experiments were carried out with the help of a universal testing machine and a Hopkinson compression bar device. Based on the o...
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Editorial Office of Journal of Mechanical Strength
2023-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.04.007 |
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| author | WANG Liang JIA HaiShen ZHANG JiLin LUO WenCui |
| author_facet | WANG Liang JIA HaiShen ZHANG JiLin LUO WenCui |
| author_sort | WANG Liang |
| collection | DOAJ |
| description | In order to construct a constitutive model that reasonably describes the changing relationship of flow stress of 440C stainless steel, quasi-static and dynamic compression experiments were carried out with the help of a universal testing machine and a Hopkinson compression bar device. Based on the obtained experimental data, the parameters of the original J-C constitutive model were calibrated, and its applicability and prediction accuracy for describing the stress-flow behavior of the studied materials were discussed. Based on the analysis results, a modified J-C constitutive model considering the coupling among strain, strain rate and temperature was proposed, and the model parameters were calibrated. The experimental data and the model predicted value were compared and analyzed, and the validity of the proposed model was evaluated by three statistical parameters: correlation coefficient R, average relative error AARE and root mean square deviation RMSE. The results show that the dynamic mechanical behavior of 440C stainless steel is jointly dominated by the coupling between strain, strain rate and temperature. The correlation coefficient R of the proposed modified J-C constitutive model is 0.995 9, the average relative error AARE is 0.073, and the root mean square deviation RMSE is 0.761 8, which can reasonably describe its stress flow behavior. |
| format | Article |
| id | doaj-art-43d6f7574af34661ba7eb9c354c6a60c |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2023-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-43d6f7574af34661ba7eb9c354c6a60c2025-01-15T02:40:55ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692023-01-0180581342274611MODIFICATION OF DYNAMIC CONSTITUTIVE RELATION OF440C STAINLESS STEEL BASED ON J-C MODEL (MT)WANG LiangJIA HaiShenZHANG JiLinLUO WenCuiIn order to construct a constitutive model that reasonably describes the changing relationship of flow stress of 440C stainless steel, quasi-static and dynamic compression experiments were carried out with the help of a universal testing machine and a Hopkinson compression bar device. Based on the obtained experimental data, the parameters of the original J-C constitutive model were calibrated, and its applicability and prediction accuracy for describing the stress-flow behavior of the studied materials were discussed. Based on the analysis results, a modified J-C constitutive model considering the coupling among strain, strain rate and temperature was proposed, and the model parameters were calibrated. The experimental data and the model predicted value were compared and analyzed, and the validity of the proposed model was evaluated by three statistical parameters: correlation coefficient R, average relative error AARE and root mean square deviation RMSE. The results show that the dynamic mechanical behavior of 440C stainless steel is jointly dominated by the coupling between strain, strain rate and temperature. The correlation coefficient R of the proposed modified J-C constitutive model is 0.995 9, the average relative error AARE is 0.073, and the root mean square deviation RMSE is 0.761 8, which can reasonably describe its stress flow behavior.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.04.007440C stainless steelHopkinson pressure barJ-C constitutive modelCoupling action |
| spellingShingle | WANG Liang JIA HaiShen ZHANG JiLin LUO WenCui MODIFICATION OF DYNAMIC CONSTITUTIVE RELATION OF440C STAINLESS STEEL BASED ON J-C MODEL (MT) Jixie qiangdu 440C stainless steel Hopkinson pressure bar J-C constitutive model Coupling action |
| title | MODIFICATION OF DYNAMIC CONSTITUTIVE RELATION OF440C STAINLESS STEEL BASED ON J-C MODEL (MT) |
| title_full | MODIFICATION OF DYNAMIC CONSTITUTIVE RELATION OF440C STAINLESS STEEL BASED ON J-C MODEL (MT) |
| title_fullStr | MODIFICATION OF DYNAMIC CONSTITUTIVE RELATION OF440C STAINLESS STEEL BASED ON J-C MODEL (MT) |
| title_full_unstemmed | MODIFICATION OF DYNAMIC CONSTITUTIVE RELATION OF440C STAINLESS STEEL BASED ON J-C MODEL (MT) |
| title_short | MODIFICATION OF DYNAMIC CONSTITUTIVE RELATION OF440C STAINLESS STEEL BASED ON J-C MODEL (MT) |
| title_sort | modification of dynamic constitutive relation of440c stainless steel based on j c model mt |
| topic | 440C stainless steel Hopkinson pressure bar J-C constitutive model Coupling action |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.04.007 |
| work_keys_str_mv | AT wangliang modificationofdynamicconstitutiverelationof440cstainlesssteelbasedonjcmodelmt AT jiahaishen modificationofdynamicconstitutiverelationof440cstainlesssteelbasedonjcmodelmt AT zhangjilin modificationofdynamicconstitutiverelationof440cstainlesssteelbasedonjcmodelmt AT luowencui modificationofdynamicconstitutiverelationof440cstainlesssteelbasedonjcmodelmt |