Fiber Path Optimization in a Variable-Stifness Cylinder to Maximize Its Buckling Load Under External Hydrostatic Pressure

The optimum paths and orientations for curvilinear and straight fibers in composite cylindrical shells of variable and constant stiffness under external hydrostatic pressure are obtained and compared. The optimization was performed for several length-to-diameter ratios of the shells. Results showed...

Full description

Saved in:
Bibliographic Details
Published inMechanics of composite materials Vol. 54; no. 6; pp. 765 - 774
Main Authors Nopour, H., Kabiri Ataabadi, A., Shokrieh, M. M.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.01.2019
Springer
Springer Nature B.V
Subjects
Buckling
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composite materials
Composites
Cylinders
Cylindrical shells
External pressure
Fibers
Gas pipelines
Gas transmission industry
Glass
Hydrostatic pressure
Laminates
Materials Science
Mechanical engineering
Natural Materials
Optimization
Pipelines
Shells
Solid Mechanics
Stiffness
Submarines
Technical institutes
Technology
cylindrical shell
buckling
external hydrostatic pressure
curvilinear fiber
variable stiffness
Online AccessGet full text

Cover

More Information
Summary:The optimum paths and orientations for curvilinear and straight fibers in composite cylindrical shells of variable and constant stiffness under external hydrostatic pressure are obtained and compared. The optimization was performed for several length-to-diameter ratios of the shells. Results showed that the buckling pressure of the variable-stiffness shell was by about 30℅ higher than that of the constant-stiffness one. This increase in the buckling pressure was obtained by locating fibers in the hoop direction in the middle of the cylinder and orienting the fibers toward the longitudinal direction on cylinder edges.
ISSN:0191-5665
1573-8922
DOI:10.1007/s11029-019-9781-9