ICFC7. Presentation: Progressive Damage Modelling of open-hole carbon/epoxy laminates under tension-tension fatigue loadings

jllobet-composite-amade-ICFC7

ICFC7. Presentation: Progressive Damage Modelling of open-hole carbon/epoxy laminates under tension-tension fatigue loadings

The contribution “Progressive Damage Modelling of open-hole carbon/epoxy laminates under tension-tension fatigue loadings” by J. Llobet, P. Maimí, A. Turon, B. L. V. Bak, E. Lindgaard, Y. Essa and F. M. de la Escalera has been presented by Jordi Llobet in the International Conference on Fatigue of Composite Materials – ICFC7 that has taken place in Vincenza (Italy) on July 4-6. An excellent occasion to discuss the experimental results obtained from tension-tension fatigue loadings on specimens that have been X-rayed and compared with the predictions of a numerical model.

Title: Progressive Damage Modelling of open-hole carbon/epoxy laminates under tension-tension fatigue loadings
Authors: J. Llobet, P. Maimí, A. Turon, B. L. V. Bak, E. Lindgaard, Y. Essa and F. M. de la Escalera
Keywords: Continuum Damage Models, Cohesive Zone Modelling, Fatigue, Fracture, Open-hole specimens
Summary: This works aims to simulate the initiation and propagation of intralaminar and interlaminar damage in open-hole carbon/epoxy laminates subjected to tension-tension fatigue loadings. The experiments revealed that the fatigue response is controlled by the progressive failure of the matrix, consisting of mainly splitting cracks and delamination. These damage forms alleviate the stress concentration at the hole and that results in an increase in the residual strength. The damage patterns obtained from X-ray radiographies at different cycle intervals and severities are compared with the numerical results to show the model capability.

 

Project and Funding

  • ABORDA project by AERNNOVA Engineering.

 
 
Click the LINK for downloading the presentation file.