| ROOF STRENGTH PERFORMANCE IMPROVEMENT ENABLERS |
| Y. H. CHO, B. K. HAN |
| Hong-Ik University |
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| ABSTRACT |
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Before 2009, rollover in vehicle accidents had not been significantly studied not only because its rate is lower than other types of accidents but also because it had been easy to meet the rollover regulation, the FMVSS 216 Roof Crush Resistance target. The regulation only requires that the strength-to-weight ratio (SWR) be 1.5, i.e., it was acceptable when the roof could withstand a force of only 1.5 times the vehicle |
| Key Words:
Top safety pick, Rollover, Strength-to-weight ratio (SWR), IIHS, FMVSS 216, Revised FMVSS 216, Roof front header panel (RF FRT HDR PNL), Reinforcement |
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