Planar delamination behaviour of CFRP panels under quasi-static out-of-plane loading

Tu, W.; Pascoe, J.A.; Alderliesten, R.C.

doi:10.1016/j.compstruct.2024.118137

Planar delamination behaviour of CFRP panels under quasi-static out-of-plane loading

Title

Planar delamination behaviour of CFRP panels under quasi-static out-of-plane loading

Author

Tu, W. (TU Delft Group Pascoe)
Pascoe, J.A. (TU Delft Group Pascoe)
Alderliesten, R.C. (TU Delft Group Alderliesten)

Date

2024

Abstract

In this study, a novel experimental approach was devised to investigate shear dominant and combined opening-shear planar delamination behaviours in composite laminates subjected to quasi-static out-of-plane loading. The patterns of planar delamination growth were depicted through different inspection techniques, including digital image correlation (DIC), C-scan, and microscopic observation. The artificially embedded delamination propagated in the direction parallel to the fibre orientation of the layer above the mid interface, but migrated to an upper interface in the direction transverse to the directing ply. A continuous stiffening process was recognized with increasing delamination area. Furthermore, a numerical analysis based on virtual crack closure technique (VCCT) indicated that the local mode II was dominant for delamination growth, while the local mode III triggered delamination migration.

Subject

Delamination
Delamination migration
Finite element analysis (FEA)
Polymer-matrix composites (PMCs)

To reference this document use:

http://resolver.tudelft.nl/uuid:9c4b8efe-4eae-4336-aadb-e9840c0b48e8

DOI

https://doi.org/10.1016/j.compstruct.2024.118137

ISSN

0263-8223

Source

Composite Structures, 339

Part of collection

Institutional Repository