EFFECT OF MATERIAL WORK HARDENING MODEL ON THE SIMULATION PRECISION FOR SPRINGBACK
Springback is an inevitable phenomenon in the stamping process,which not only affects the dimension precision,but also affects the structure reliability. Therefore,an accurate prediction of springback is the first important to decrease and control the springback. The material in the stamping process...
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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.1001.9669.2015.03.016 |
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| author | 罗云 蒋文春 杨滨 王炳英 |
| author_facet | 罗云 蒋文春 杨滨 王炳英 |
| author_sort | 罗云 |
| collection | DOAJ |
| description | Springback is an inevitable phenomenon in the stamping process,which not only affects the dimension precision,but also affects the structure reliability. Therefore,an accurate prediction of springback is the first important to decrease and control the springback. The material in the stamping process will undergo reversed loading,and shows different mechanical properties from monotonic loading. Therefore,the material work hardening model is one of the most important factors affect the simulation precision. This paper uses finite element method to study the springback in the punching of a flanging,and the effects of isotropic,kinematic and mixed hardening models have been discussed,which is verified by the experimental. The results show that the isotropic hardening model does not consider the Bauschinger effect,which leads to an overestimation of springback. The kinematic hardening model does not consider the effect induced by the quick stress-strain,which leads to underestimation of springback. The mixed hardening model considers both the Bauschinger effect and transient characteristics,showing a true stress and strain,which leads to an accurate calculation of bending residual stress and springback. The result of mixed hardening model is well consistent with the experimental. |
| format | Article |
| id | doaj-art-552c9731652f4881a3983260427a3f6d |
| 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-552c9731652f4881a3983260427a3f6d2025-01-15T02:38:33ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692015-01-013755155530591824EFFECT OF MATERIAL WORK HARDENING MODEL ON THE SIMULATION PRECISION FOR SPRINGBACK罗云蒋文春杨滨王炳英Springback is an inevitable phenomenon in the stamping process,which not only affects the dimension precision,but also affects the structure reliability. Therefore,an accurate prediction of springback is the first important to decrease and control the springback. The material in the stamping process will undergo reversed loading,and shows different mechanical properties from monotonic loading. Therefore,the material work hardening model is one of the most important factors affect the simulation precision. This paper uses finite element method to study the springback in the punching of a flanging,and the effects of isotropic,kinematic and mixed hardening models have been discussed,which is verified by the experimental. The results show that the isotropic hardening model does not consider the Bauschinger effect,which leads to an overestimation of springback. The kinematic hardening model does not consider the effect induced by the quick stress-strain,which leads to underestimation of springback. The mixed hardening model considers both the Bauschinger effect and transient characteristics,showing a true stress and strain,which leads to an accurate calculation of bending residual stress and springback. The result of mixed hardening model is well consistent with the experimental.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.03.016SpringbackHardening modelResidual stress |
| spellingShingle | 罗云 蒋文春 杨滨 王炳英 EFFECT OF MATERIAL WORK HARDENING MODEL ON THE SIMULATION PRECISION FOR SPRINGBACK Jixie qiangdu Springback Hardening model Residual stress |
| title | EFFECT OF MATERIAL WORK HARDENING MODEL ON THE SIMULATION PRECISION FOR SPRINGBACK |
| title_full | EFFECT OF MATERIAL WORK HARDENING MODEL ON THE SIMULATION PRECISION FOR SPRINGBACK |
| title_fullStr | EFFECT OF MATERIAL WORK HARDENING MODEL ON THE SIMULATION PRECISION FOR SPRINGBACK |
| title_full_unstemmed | EFFECT OF MATERIAL WORK HARDENING MODEL ON THE SIMULATION PRECISION FOR SPRINGBACK |
| title_short | EFFECT OF MATERIAL WORK HARDENING MODEL ON THE SIMULATION PRECISION FOR SPRINGBACK |
| title_sort | effect of material work hardening model on the simulation precision for springback |
| topic | Springback Hardening model Residual stress |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.03.016 |
| work_keys_str_mv | AT luōyún effectofmaterialworkhardeningmodelonthesimulationprecisionforspringback AT jiǎngwénchūn effectofmaterialworkhardeningmodelonthesimulationprecisionforspringback AT yángbīn effectofmaterialworkhardeningmodelonthesimulationprecisionforspringback AT wángbǐngyīng effectofmaterialworkhardeningmodelonthesimulationprecisionforspringback |