Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Optimum Shape for Buckling and Post-Buckling Behavior of a Laminated Composite Panel with I-type Stiffeners

  • Lee, Gwang-Rog (Department of Mechanical Engineering, Sungkyunkwan University) ;
  • Yang, Won-Ho (School of Mechanical Engineering, sungkyunkwan University) ;
  • Sub, Myung-Won (School of Mechanical Engineering, sungkyunkwan University)
  • Published : 2002.10.01
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Abstract

A shape optimization of stiffener was conducted to increase buckling load or failure load with stiffened laminated composite panel of I-type under compression loading. Design variables are cap length, web length, and/or thickness under the constraint of volume constancy. The objective function is buckling load and failure load of post-buckling based on Tsai-Hill theory using ABAQUS 5.8 for analysis and Optimizer on Broydon-Fletcher Goldfarb-Sharno Method and Augmented Lagrange Multiplier Method. The effects of relative length of a web and a cap of stiffener on buckling load and failure load of post-buckling were investigated with the results of optimum design.

Keywords

References

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