Two-dimentional Mode-II delamination experiments on glass-fiber composite laminates

Published: 27 December 2023| Version 1 | DOI: 10.17632/p4rc97wd7f.1
Congzhe Wang,


The dataset shows the results for two-dimensional (2D) Mode-II delamination experiments on glass-fiber/epoxy composite laminates. The full experimental program contains a series of experiments with 9 different set-up/specimen combinations, nembered 1 - 9, exhibiting the whole development process of the experimental designs towards the final matrix (Set-up #9), which has been published in a journal paper [Wang C., Vassilopoulos AP, Keller T. Experimental investigation of two-dimensional Mode-II delamination in composite laminates. Composites Part A: Applied Science and Manufacturing. 2023, 173:107666]. These experiments included circular specimens, with the edge either simply supported by a ring or semi-clamped by two ring frames (allow free sliding of the specimen edge), then loaded transversely above the centrally embedded circular pre-crack to promote symmetric (circular) crack propagation. The description of each set-up can be found in the file "2D_Experiments_description.xlsx". All 2D specimens failed in bending at the bottom center. During crack propagation, the loads in the 2D specimens continued to increase, showing certain pseudo-ductility. The results can be compared with standardized one-dimensional (1D) tests, e.g. End-loaded Split (ELS) tests, to reveal different fracture behavior under 2D conditions. The 2D cohesive relationships can be derived by numerical fitting of the data.



Ecole Polytechnique Federale de Lausanne


Fracture, Composite Laminate, Delamination