Title of article :
Multiobjective Geometric Analysis of Stiffened Plates under Bending through Constructal Design Method
Author/Authors :
Isoldi, Liércio André Federal University of Rio Grande - FURG - Graduate Program in Ocean Engineering - Rio Grande - 96203-900, Brazil , Pinto, Vinícius Torres Federal University of Rio Grande - FURG - Graduate Program in Ocean Engineering - Rio Grande - 96203-900, Brazil , Santos, Elizaldo Domingues dos Federal University of Rio Grande - FURG - Graduate Program in Ocean Engineering - Rio Grande - 96203-900, Brazil , Rocha, Luiz Alberto Oliveira University of Vale do Rio dos Sinos - UNISINOS - Graduate Program in Mechanical Engineering - São Leopoldo - 93022-750, Brazil , Fragassa, Cristiano University of Bologna - Department of Mechanical Engineering - Bologna - 40136, Italy
Abstract :
Constructal design, finite element method and exhaustive search are applied to analyze different arrangements of steel
plates with rectangular or trapezoidal stiffeners. As performance parameters, the maximum deflection and maximum von Mises
stress are considered. A non-stiffened plate adopted as reference is studied together with 25 plates with rectangular stiffeners
and 25 plates with trapezoidal stiffeners. The results show that trapezoidal stiffeners are more effective in minimizing the
maximum deflection in comparison with rectangular stiffeners. However, regarding the minimization of stress, the rectangular
stiffeners normally present better performance. When both performance parameters are concomitantly considered, a slight
advantage of 4.70% for rectangular geometry is identified.
Keywords :
Plate Bending , Geometric Optimization , Numerical Simulation , Rectangular Stiffeners , Trapezoidal Stiffeners
Journal title :
Journal of Applied and Computational Mechanics
