First-Ply-Failure Performance of Composite Clamped Spherical Shells

The failure aspects of composites are available for plates, but studies of the literature on shells unveils that similar reports on them are very limited in number. The aim of this work was to investigate the first-ply-failure of industrially and aesthetically important spherical shells under unifor...

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Bibliographic Details
Published in:Mechanics of composite materials 2018-05, Vol.54 (2), p.191-206
Main Authors: Ghosh, A., Chakravorty, D.
Format: Article
Language:English
Subjects:
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composite materials
Composites
Failure analysis
Failure modes
Finite element method
Glass
Materials Science
Natural Materials
Solid Mechanics
Spheres
Spherical shells
Stresses
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Summary:The failure aspects of composites are available for plates, but studies of the literature on shells unveils that similar reports on them are very limited in number. The aim of this work was to investigate the first-ply-failure of industrially and aesthetically important spherical shells under uniform loadings. Apart from solving benchmark problems, numerical experiments were carried out with different variations of their parameters to obtain the first-ply-failure stresses by using the finite-element method. The load was increased in steps, and the lamina strains and stresses were put into well-established failure criteria to evaluate their first-ply-failure stress, the failed ply, the point of initiation of failure, and failure modes and tendencies. The results obtained are analyzed to extract the points of engineering significance.
ISSN:0191-5665
1573-8922
DOI:10.1007/s11029-018-9731-y