Structural system involves random conditions such as material property, geometric parameters and applied loads. This is caused by either measurement inaccuracy or system complexity and must be designed to withstand the uncertainties, Random structures may be modelled by using the finite element method using Monte Carlo simulation. It can be applied easily to any structural system with random parameters. The aim of this paper is to find the shape optimal design for the cantilever beam with random input variables to the height and response parameters to the displacement and stresses. The probabilistic design is carried out using ANSYS probabilistic design module in a commercial application software and then the optimal design is sequentially solved. An efficient and practical shape optimal design evaluation method is proposed for the design of the cantilever beam shape. The numerical results are obtained where total volume of the beam, stresses and displacements in the beam treated as constraints

1. 서 론
 2. 확률설계 정식화
  2.1 문제 설정
  2.2 확률 설계
  2.3 확률 구조 최적설계 정식화
 3. 불확정 구조 형상 최적 설계
  3.1 확률 설계 결과
  3.2 불확정 구조계 최적설계 결과
 4. 결 론
 References

• 이병우(Member, Dong- eui Institute of Technology) | Byung-W oo Lee Corresponding author