The optimal design of a functionally graded corrugated cylindrical shell under axisymmetric loading. (English) Zbl 1476.74101
Summary: Optimization of parameters of the corrugated shell aims to achieve its minimum weight while keeping maximum stiffness ability. How an introduction of functionally graded corrugations resulted in improved efficiency of this thin-walled structure is demonstrated. The corrugations are graded varying their pitch. The effect of variation in pitch is studied. Homogenization approach gives explicit expressions to calculate the equivalent shell properties. Then well-elaborate methods of optimal design theory are used. The illustrative examples for hydrostatic load demonstrate a high efficiency of the used method.
MSC:
| 74K25 | Shells |
| 65K10 | Numerical optimization and variational techniques |
| 74Q05 | Homogenization in equilibrium problems of solid mechanics |
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