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| Study of hot forming for high strength steel: numerical simulation-static explicit algorithm |
| Received:February 05, 2010 Revised:July 05, 2010 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201103012 |
| KeyWord:static explicit algorithm thermal-mechanical-transformation coupled rate-dependent KMAS numerical simulation |
| Author | Institution |
| 马宁 |
大连理工大学 工业装备结构分析国家重点实验室 运载工程与力学学部 汽车工程学院,大连 |
| 武文华 |
大连理工大学 工业装备结构分析国家重点实验室 运载工程与力学学部 汽车工程学院,大连 |
| 申国哲 |
大连理工大学 工业装备结构分析国家重点实验室 运载工程与力学学部 汽车工程学院,大连 |
| 胡平 |
大连理工大学 工业装备结构分析国家重点实验室 运载工程与力学学部 汽车工程学院,大连 |
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| Abstract: |
| Based on the developed multi-field coupled, rate-dependent constitutive equation of hot forming and the finite strain virtual power equation and continuous equilibrium equation based on Updated Lagrange method, the large-deformation,multi-field coupled, static explicit finite element equations of hot forming are established. The phase transformation latent heat is introduced into the analysis of temperature field during the hot forming process. Based on the independently developed commercial CAE software for sheet metal forming, named KMAS (King-Mesh Analysis System), the numerical simulation module of hot forming is developed, which considers multi-field coupled, nonlinear and large deformation analysis. Then the hot stamping process of a reinforced beam inside the automobile door is simulated by the KMAS software, and compared with its hot forming experiments. The experimental results indicate the validity and efficiency of the present constitutive model and numerical simulation software KMAS introducing the hot forming. |
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