A finite element impact simulation study was performed to assess structural performances of a guard-rail system for roadside using new steel materials (SS275) in the KS standard. The type SS275 shows an enhanced tensile strength in comparison with the former type SS400. Subsequent simulation results present that the improved model performs much better in containing and redirecting the impacting vehicle in a stable manner. The numerical results for various parameters are verified by comparing different models with dynamic responses determined in the barrier from the crash simulation.

ABSTRACT
 1. 서 론
 2. 신 강재 규격분석
 3. 수치해석 및 결과
 4. 요약 및 결론
 References

• 이교록(안동대학교 토목공학과) | Kim Gyu-Dong
• 이상열(안동대학교 공과대학 토목공학과) | Lee Sang-Youl