The structural performance of a vehicle can be evaluated by the static and dynamic structural analyses which predict the amount of deformation, stiffness. And the static analysis should be done first. Another important aspect to be considered in the design process is crashworthiness, because a structurally sturdy vehicle body may be overdesigned with excessive strength and durability standards. The ideal condition of a body structure is to absorb impact load at a certain level of local deformation, to distribute the load to each structure adequately, and to prevent excessive stress concentration and deformation. This paper is the result of the consideration of automotive body, bending and torsional stiffness for structure stiffness estimation of automotive body through finite element modeling.

ABSTRACT
 1. 서 론
 2. 차체의 구조설계를 위한 유한요소 모델링
  2.1 단순 유한요소 모델링
  2.2 결합부 강성의 수식화
 3. 차체에 대한 구조 강성 평가
  3.1 차체 구조
  3.2 굽힘 및 비틀 림 강성
 4. 결 론
 References

• 이정익(Department of Mechanical Design, Inha Technical College) | Jeongick Lee Corresponding Author