경량화 소재 변형률에 따른 에너지 흡수 특성을 고려한 시트 프레임 구조 해석
Seat Frame Structural Analysis Considering the Energy Absorption Characteristics according to the Strain Rate of Lightweight Material
In the development of eco-friendly vehicles such as electric vehicles, weight reduction has become a very important design target. Seat weight reduction is very important in vehicle weight reduction. In this study, the energy absorption characteristics of Almag material, an alloy of aluminum and magnesium, and mild steel SAFH440, SAFH590, SAFC780, and SAFH980 were analyzed to obtain a true stress versus true strain curve that was correlated with the test. By performing the seat frame structure analysis using the obtained analysis material property, it was possible to compare the deformation between lightweight material, Almag and mild steel materials. In addition, it was confirmed that the weight reduction effect was 25.8% when applying Almag, an equivalent lightweight material that gives the same maximum deformation as SAFH980, a high-strength mild steel.
목차
ABSTRACT 1. 서론 2. 변형률에 따른 에너지 흡수 특성 2.1 시편 파단 위치 연구 2.2 시편 파단부 시험 대 해석 비교 2.3 해석 대 시험 시편 진 응력 선도 비교 2.4 시편 인장 변형률 에너지 비교 3. 경량화 소재 적용 시트 프레임 구조 강도 해석 3.1 해석 모델 개요 3.2 구조 해석 결과 3.3 경량화 재료의 두께별 변형량 해석 및 등가 변형량의 Almag 중량 계산 4. 결론 후기 References
키워드
에너지 흡수 특성중량 절감알루미늄 마그네슘 합금진 응력-진 변형률 선도파단 변형률Energy absorption characteristicsWeight reductionAlloy of aluminum and magnesiumTrue stress-true strain curveFracture strain
저자
박동규 [ Dong-Kyou Park | Professor, Korea University of Technology and Education ]
Corresponding Author