Abstract
A numerical study was performed on the fracture toughness test to obtain the critical strain energy release rate (G_<IC>) of Glass Fiber Reinforced Plastic (GFRP) laminates in wind turbine blade. Two-dimensional numerical analysis, based on an elastic finite element method (FEM) using the static explicit method and the cohesive damage model, was performed to simulate the fracture toughness test. The cohesive damage model used to predict the delamination occurrence and growth is based on a special developed interface finite element including an exponential damage process. The numerical prediction showed good agreement with the experimental results.
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