해석적 기법을 이용한 이종 재료로 제작된 자동차 센터 플로어를 통한 차체 경량성 연구
A Study on the Lightweight of Vehicle Body through the Automotive Center Floor made of Heterogeneous Materials using Analytic Technique
In this study, the failure characteristic of the center floor of a front-wheel drive vehicle was investigated according to material. UHSS, Al6061-T6, CFRP, and CFRP-Al were used as materials. As the analysis condition, a fixed support was applied to the rear surface of the center floor and a forced displacement of 2 mm/sec was applied to the front surface. As the result, when comparing with the equivalent stress and strain energy according to the material, it was found that UHSS, Al6061-T6, CFRP, and CFRP-Al were higher in the order. Also, when comparing with the equivalent strain due to the material, it was shown that the equivalent strain was high in the order of Al6061-T6, UHSS, CFRP and CFRP-Al. As for the damage characteristic of the center floor according to the material, it was found that the highest structural stability was obtained when UHSS was used. However, it was found that it was good to utilize Al6061-T6 in order to acquire the structural stability along with the structure with the lighter weight.
키워드
탄소섬유 강화 플라스틱Al6061-T6센터 플로워등가 응력유한요소법Carbon fiber reinforced plasticAl6061-T6Center floorEquivalent stressFinite element method
저자
최계광 [ Kye-Kwang Choi | Department of Metalmold Design Engineering, Kongj National University ]
조재웅 [ Jae-Ung Cho | Member, Professor, Division of Mechanical & Automotive Engineering, Kongj National University ]
Corresponding Author