A progressive damage model for pressurized filament-wound hybrid composite pipe under low-velocity impact

Pressurized hybrid composite pipe structures, produced by filament wound subjected to impact loads, were numerically investigated. A combined 3D-FE Model based on the use of interlaminar and intralaminar damage models is established. Intralaminar damages such as matrix cracking and fibre failures are predicted using 3D Hashin criteria, whereas interlaminar damage (delamination) was evaluated using cohesive zone elements. The damage model was coded and implemented as a user-defined material subroutine (VUMAT) for Abaqus/Explicit. Numerical results in the form of contact force, displacement and energy dissipated compare well with the experimental results. Predicted matrix damage in each cross-ply of hybrid composite pipe and delamination onset were also presented in this paper. The ability of this new 3D model to simulate the damage evolution in the full-scale pressurized hybrid composite pipe under low-velocity impact events were demonstrated throughout comparison with existing experimental results published.