• Title/Summary/Keyword: RM판이론

Search Result 1, Processing Time 0.014 seconds

Topology Optimization of General Plate Structures by Using Unsymmetric Layered Artificial Material Model (비대칭 층을 가지는 인공재료모델을 이용한 일반 평판구조물의 위상최적화)

  • Park, Gyeong-Im;Lee, Sang-Jin
    • Journal of Korean Association for Spatial Structures
    • /
    • v.7 no.5
    • /
    • pp.67-74
    • /
    • 2007
  • The unsymmetrically layered artificial material model is consistently introduced to find the optimum topologies of the plate structures. Reissner-Mindlin (RM) plate theory is adopted to formulate the present 9-node plate element considering the first-order shear deformation of the plates. In the topology optimization process, the strain energy to be minimized is employed as the objective function and the initial volume of structures is adopted as the constraint function. In addition, the resizing algorithm based on the optimality criteria is used to update the hole size introduced in the proposed artificial material model. Several numerical examples are rallied out to investigate the performance of the proposed technique. From numerical results, the proposed topology optimization techniques are found to be very effective to produce the optimum topology of plate structures. In particular, the proposed unsymmetric stiffening layer model make it possible to produce more realistic stiffener design of the plate structures.

  • PDF