A fatigue damage and residual strength model for unidirectional carbon/epoxy Composites under on-axis tension-tension loadings

A fatigue damage and residual strength model for unidirectional carbon/epoxy Composites under on-axis tension-tension loadings

A new paper published by J. Llobet et al. (A fatigue damage and residual strength model for unidirectional carbon/epoxy Composites under on-axis tension-tension loadings) is included in the October issue of the International Journal of Fatigue. It presents a phenomenological model for the prediction of fatigue life based on the reduction of the in-plane longitudinal stress while considering that the ultimate strain remains constant after fatigue damage. The model is supported with experiments, which are also duly described.

 

Paper information

Title A damage fatigue and residual strength model for unidirectional carbon/epoxy Composites under on-axis tension-tension loadings
Authors: J. Llobet, P. Maimí, J.A Mayugo, Y. Essa, F. Martin de la Escalera
Journal, Volume, Page, Year: International Journal of fatigue, Volume 103, October 2017, Pages 508-515
DOI:

https://doi.org/10.1016/j.ijfatigue.2017.06.026

 

Highlights

  • The proposed model requires only the characterization of stiffness loss
  • The ultimate strain remains constant after fatigue damage
  • The residual stiffness evolves in the same manner as the strength
  • The proposed model predicts fatigue life reasonably well

 

Project and Finding

  • Relevant projects: retos ABORDA
  • Funding institutions: Ministerio de Economia y Competitividad