- Curiel-Sosa JL, Tafazzolimoghaddam B & Zhang C (2018). Modelling fracture and delamination in composite laminates: Energy release rate and interface stress. Composite Structures, 189, 641-647.
- Abdullah NA, Curiel-Sosa JL, Taylor ZA, Tafazzolimoghaddam B, Martinez Vicente JL & Zhang C (2017) Transversal crack and delamination of laminates using XFEM. Composite Structures, 173, 78-85.
- Curiel Sosa JL & Karapurath, N (2012). Delamination modelling of GLARE using the Extended Finite Element Method. Composite Science Technology, 72 (7): 788-791.
An approach for modelling fracture and delamination, based on the partition of finite elements and on the energy release rate due to crack propagation in cross-ply laminates is presented in Curiel-Sosa JL et al. (2018). The energy release rate is implemented within an Extended Finite Element Method (XFEM) framework. This approach is enabling the prediction of delamination propagation without pre-allocating damage zones. No element deletion techniques were used either. Mesh refinement was not needed for the propagation of cracks. Virtual testing of transverse cracks – eventually triggering delamination in cross-ply laminates – is presented to show the technique efficiency. Thus, a maximum energy release rate of 0.9kJ/m2 is found for a transverse crack within laminate. When maximum energy release rate is reached, delamination in the interface is triggered. Furthermore, delamination in a composite double cantilever beam is simulated and presented in some detail. The results were compared with experimental outputs and/or by other numerical means showing an excellent correlation.
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