Z-cracks provides a flexible and efficient framework for investigating 3D crack growth. It calculates SIFs based on linear-elastic fracture mechanics (LEFM) for static crack configurations within a small perturbation approach, and can predict mixed-mode propagation under the same assumptions. The module includes a dedicated graphical user interface (GUI) and leverages adaptive 3D remeshing combined with multi-threaded post-processing for SIF evaluation.
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Starting from an uncracked mesh, Z-cracks allows on-the-fly crack insertion and discretization in complex structures using efficient adaptive remeshing, where the mesh automatically conforms to the newly introduced discontinuities. After remeshing, an efficient template-based technique rebuilds input files in formats compatible with supported solvers.
Regardless of the solver used for the finite element simulation, Z-cracks can extract all necessary data from the results, compute energy release rates and SIFs, and apply Paris law or other advanced crack propagation models. It also enables mixed-mode thermo-mechanical fatigue simulations, providing insight into the lifespan of components under complex loading conditions.
When employing robust adaptive remeshing, Z-cracks can simulate 3D crack growth considering:
This combination of features allows complete simulations : from crack insertion to long-term propagation, to be performed more efficiently than any comparable solution currently available.