• 한국기계가공학회지
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• 제7권3호
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• pp.12-16
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• 2008

The state of deformation and stress and the structural safety are studied at the main frame composed with car body by the impact of front, offset and overturn in this study. The values of maximum deformation and von-Mises stress in case of offset impact are 2 to 3 times as high as those in case of front or offset impact at the parts of front and middle legs of roll cage. The case of front impact is of the greatest safety as compared with the case of offset or overturn impact. As there is a great stress on the side in case of overturn impact, this value is more than 2 times as low as that in case of offset impact. But there is a great possibility of overturn by the buckling on both sides in case of overturn impact.