DYNAMIC MECHANICAL PROPERTIES AND CONSTITUTIVE MODEL MODIFICATION OF SUS304 STAINLESS STEEL USED IN CARBODIES OF TRAINS
In order to study the dynamic mechanical properties of SUS304 stainless steel commonly used in rail vehicles, tensile tests under wide strain rates of 0.000 2 s<sup>-1</sup>～500 s<sup>-1</sup> were carried out respectively. The test results show that SUS304 stainless steel ex...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2022-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.01.010 |
| _version_ | 1797768057569935360 |
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| author | LIU YuXin ZHU Tao XIAO ShouNe YANG GuangWu YANG Bing WANG MingMeng |
| author_facet | LIU YuXin ZHU Tao XIAO ShouNe YANG GuangWu YANG Bing WANG MingMeng |
| author_sort | LIU YuXin |
| collection | DOAJ |
| description | In order to study the dynamic mechanical properties of SUS304 stainless steel commonly used in rail vehicles, tensile tests under wide strain rates of 0.000 2 s<sup>-1</sup>～500 s<sup>-1</sup> were carried out respectively. The test results show that SUS304 stainless steel exhibits strain hardening during dynamic stretching. As the strain rate increases, the material exhibits a strain rate strengthening effect. At the same time, a certain thermal softening effect is produced. To accurately describe the dynamic mechanical properties of the material, the Johnson-Cook model of the material at room temperature was first established. On this basis, adiabatic temperature rise is introduced, and a modified Johnson-Cook model considering plastic strain and strain rate correlation is established. The modified Johnson-Cook model can better describe the dynamic mechanical characteristics of SUS304 stainless steel, which is the characteristic that the stress gradually weakens with the increase of strain and strain rate. This modified model provides a basic basis for the crashworthiness analysis of the rail vehicle body structure. |
| first_indexed | 2024-03-12T20:47:57Z |
| format | Article |
| id | doaj.art-4aa2aeec1b0a47d3a11c40cb9e51e80b |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2024-03-12T20:47:57Z |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-4aa2aeec1b0a47d3a11c40cb9e51e80b2023-08-01T07:38:13ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-0144748029910409DYNAMIC MECHANICAL PROPERTIES AND CONSTITUTIVE MODEL MODIFICATION OF SUS304 STAINLESS STEEL USED IN CARBODIES OF TRAINSLIU YuXinZHU TaoXIAO ShouNeYANG GuangWuYANG BingWANG MingMengIn order to study the dynamic mechanical properties of SUS304 stainless steel commonly used in rail vehicles, tensile tests under wide strain rates of 0.000 2 s<sup>-1</sup>～500 s<sup>-1</sup> were carried out respectively. The test results show that SUS304 stainless steel exhibits strain hardening during dynamic stretching. As the strain rate increases, the material exhibits a strain rate strengthening effect. At the same time, a certain thermal softening effect is produced. To accurately describe the dynamic mechanical properties of the material, the Johnson-Cook model of the material at room temperature was first established. On this basis, adiabatic temperature rise is introduced, and a modified Johnson-Cook model considering plastic strain and strain rate correlation is established. The modified Johnson-Cook model can better describe the dynamic mechanical characteristics of SUS304 stainless steel, which is the characteristic that the stress gradually weakens with the increase of strain and strain rate. This modified model provides a basic basis for the crashworthiness analysis of the rail vehicle body structure.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.01.010SUS304 stainless steel;Dynamic constitutive;Johnson-Cook model;Strain rate |
| spellingShingle | LIU YuXin ZHU Tao XIAO ShouNe YANG GuangWu YANG Bing WANG MingMeng DYNAMIC MECHANICAL PROPERTIES AND CONSTITUTIVE MODEL MODIFICATION OF SUS304 STAINLESS STEEL USED IN CARBODIES OF TRAINS Jixie qiangdu SUS304 stainless steel;Dynamic constitutive;Johnson-Cook model;Strain rate |
| title | DYNAMIC MECHANICAL PROPERTIES AND CONSTITUTIVE MODEL MODIFICATION OF SUS304 STAINLESS STEEL USED IN CARBODIES OF TRAINS |
| title_full | DYNAMIC MECHANICAL PROPERTIES AND CONSTITUTIVE MODEL MODIFICATION OF SUS304 STAINLESS STEEL USED IN CARBODIES OF TRAINS |
| title_fullStr | DYNAMIC MECHANICAL PROPERTIES AND CONSTITUTIVE MODEL MODIFICATION OF SUS304 STAINLESS STEEL USED IN CARBODIES OF TRAINS |
| title_full_unstemmed | DYNAMIC MECHANICAL PROPERTIES AND CONSTITUTIVE MODEL MODIFICATION OF SUS304 STAINLESS STEEL USED IN CARBODIES OF TRAINS |
| title_short | DYNAMIC MECHANICAL PROPERTIES AND CONSTITUTIVE MODEL MODIFICATION OF SUS304 STAINLESS STEEL USED IN CARBODIES OF TRAINS |
| title_sort | dynamic mechanical properties and constitutive model modification of sus304 stainless steel used in carbodies of trains |
| topic | SUS304 stainless steel;Dynamic constitutive;Johnson-Cook model;Strain rate |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.01.010 |
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