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Mechanics of Composite Materials
Erschienen in: Mechanics of Composite Materials 1/2023

11.03.2023

Investigation of Gap and Overlap Effects on the Buckling Load of Variable-Stiffness Composite Cylinders Under an External Hydrostatic Pressure and Pure Bending

verfasst von: H. Nopour, A. Kabiri Ataabadi, M. M. Shokrieh

Erschienen in: Mechanics of Composite Materials | Ausgabe 1/2023

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Abstract

In the present research, the optimum paths and orientations for curvilinear and straight fibers of variable-and constant-stiffness composite cylindrical shells subjected to an external hydrostatic pressure and bending were found. For this purpose, a linear variation in the fiber orientation was considered for the curvilinear fibers. A genetic algorithm program written in the Python language was developed and linked to the ABAQUS finite-element code and used in an optimization process. The optimization was performed for several aspect ratios of the length-to-diameter of composite cylindrical shells. The buckling pressure of the variable-stiffness composite cylindrical shell increased by about 30℅ in comparison with that of the constant-stiffness composite cylindrical shell under an external hydrostatic pressure. The gaps and overlaps were modeled using a Pythonbased program and the ABAQUS software to investigate their effects on the buckling load of variable-stiffness cylindrical shells under external pressure loads.
Vorheriger Artikel Evaluation of the Effect of Elevated Temperature and Preliminary Thermal Aging on the Residual Mechanical Properties of a Structural Fiberglass Using the Signals of Acoustic Emission
Nächster Artikel Loading-Unloading-Recovery Curves for Polyester Yarns and Identification of the Nonlinear Maxwell-Type Viscoelastoplastic Model

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Metadaten
Titel
Investigation of Gap and Overlap Effects on the Buckling Load of Variable-Stiffness Composite Cylinders Under an External Hydrostatic Pressure and Pure Bending
verfasst von
H. Nopour
A. Kabiri Ataabadi
M. M. Shokrieh
Publikationsdatum
11.03.2023
Verlag
Springer US
Erschienen in
Mechanics of Composite Materials / Ausgabe 1/2023
Print ISSN: 0191-5665
Elektronische ISSN: 1573-8922
DOI
https://doi.org/10.1007/s11029-023-10085-y

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