Compressive response and failure of a micromechanical model for confined unidirectional fiber-reinforced composites
Paper in proceedings, 2019

The longitudinal compressive response of unidirectional high-stiffness carbon fibres radially confined with glass fibre and embedded in an epoxy matrix are analysed in this study. The method was originally developed for reinforced concrete columns. For this class of hybrid composites, initial fiber misalignment along with material nonlinearity leads to the initiation of fibre kinking. The load carrying capability is expected to be preserved due to the presence of lateral confinement. However, compressive strength is highly depended on fibre alignment. If, via manufacturing highly aligned fibres can be formed, then this could potentially lead to micro-buckling failure initiation.

fiber reinforced composite

progressive damage and failure

compressive strength

microbluckling

confinement

kink banding

Author

Antonio Settanni

University of Bologna

Brina Blinzler

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Alessandro Ceruti

University of Bologna

70th International Astronautical Congress (IAC) Proceedings

Vol. 19 C2 2.1

70 th International Astronautical Congress (IAC)
Washington D.C., ,

Subject Categories

Applied Mechanics

Textile, Rubber and Polymeric Materials

Composite Science and Engineering

More information

Created

11/12/2019