Slow-growth damage tolerance for fatigue after impact in FRP composites: Why current research won’t get us there

Slow-growth damage tolerance for fatigue after impact in FRP composites: Why current research won’t get us there

Pascoe, J.A. (TU Delft Structural Integrity & Composites)

2020

Impact damage in CFRP structures is currently managed using the ‘no-growth’ concept, meaning that damage is not allowed to grow under fatigue loading. This requires that stresses in the material are kept below the fatigue limit, imposing a significant weight penalty. A ‘slow-growth’ concept would allow more efficient structural designs, but several knowledge gaps need to be addressed before this is possible. These gaps exist in three main areas: (1) damage characterisation, (2) fatigue driven delamination growth after impact, and (3) final failure of impacted laminates. The paper highlights open questions and the shortcomings of current research in addressing them, and suggests avenues for future research.

Compression after impact
Damage management
Damage tolerance

http://resolver.tudelft.nl/uuid:d140591a-4f6e-4988-903c-85d7acbc097f

https://doi.org/10.1016/j.prostr.2020.10.084

2452-3216

Procedia Structural Integrity, 28, 726-733

1st Virtual European Conference on Fracture, 2020-06-29 → 2020-07-01, Virtual/online event due to COVID-19

Conference paper presented at the 1st Virtual European Conference on Fracture

Institutional Repository

journal article

© 2020 J.A. Pascoe