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International Journal of Automotive Technology 2003;4(3): 149-156. |
| CRASHWORTHINESS ASSESSMENT OF SIDE IMPACT OF AN AUTO-BODY WITH 60TRIP STEEL FOR SIDE MEMBERS |
| H. Huh1, J. H. LIM2, J. H. SONG2, K. -S. LEE3, Y.-W. LEE3, S. S. HAN4 |
1Korea Advanced Institute of Science and Technology
2Korea Advaced Institute of Science and Technology
3Hyundai Motors
4POSCO |
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| ABSTRACT |
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This paper is concerned with the energy absorption efficiency of auto-body side structures for the conventional steel and 60TRIP high strength steel. In order to evaluate the energy absorption efficiency, the dynamic crash analysis is carried out with the regulation of US0SINCAP. The analysis adopts the Johnson-Cook model for the dynamic material properites, which have been obtained from dynamic material tests. For the sake of the dynamic material properties, the anaylsis has been accurately performed for the crashworthiness assessment. The analysis result provides deformed shapes, amounts of penetration and accelerations at several important points during crash. The result confirms that 60TRIP greatly improves the crashworthiness of the side members without sacrificing the weight and thus can be used for the light-weight design of an auto-body. |
| Key Words:
Crashworthiness, Side impact analysis, TRIP Steel, Johnson-Cook model |
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