A Study of Shrink-Fitting for Optimal Design of Multi-Layer Composite Tubes Subjected to Internal and External Pressure
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Springer
Abstract
This paper addresses the effect of shrink-fitting on the optimal design of pressurized multi-layer composite tubes. Analytical solutions for structural response calculations are provided for axially constrained two- and three-layer shrink-fitted tubes under both internal and external pressure. A recently developed numerical evolutionary optimization algorithm is employed for weight and cost minimization of these assemblies. In order to investigate the effect of shrink-fitting, first, optimal material selection and thickness optimization of tightly fitted tubes, under either internal or both internal and external pressure, are accomplished without shrink-fitting. Next, under the same loading and boundary conditions the assemblies are optimized where shrink-fitting parameters are taken into account for weight and cost minimization. The numerical results obtained for multi-layer composite tubes with and without shrink-fitting indicate that more economical or lightweight assemblies can be obtained if shrink-fitting parameters are treated as additional design variables of the optimization problem. Furthermore, it is observed that considering the shrink-fitting parameters for optimal design becomes more advantageous in the test cases with a higher ratio of internal pressure to external pressure.
Description
Akis, Tolga/0000-0002-6754-4497; Kazemzadeh Azad, Saeid/0000-0001-9309-607X
Keywords
Shrink-fitting, Composite assembly, Multi-layer composite tubes, Optimum design, Discrete optimization, Metaheuristics
Turkish CoHE Thesis Center URL
Citation
3
WoS Q
Q4
Scopus Q
Q3
Source
Volume
43
Issue
Start Page
451
End Page
467