Overview of the Capabilities of CRACK3D
3D elastic and elastic-plastic stress analysis of structures with or without cracks and under small or large deformation (including large displacement, large rotation and finite strain)
3D mixed-mode crack growth simulation under different approaches, including nodal pair release, local remeshing, and cohesive zone model.
General three-dimensional crack growth simulation under various topologies.
Automated identification of topological evolution of computational domains during crack propagation.
Linking-up and separation of cracks.
Simulation of a structure with single crack or multiple cracks.
Simulation of crack initiation and propagation.
Several failure criteria for crack growth simulation.
User control of the execution of the simulation.
Local remeshing in the event that severe mesh distortion occurs without termination of execution.
Proportional loading or non-proportional loading.
Several methods of solving equilibrium equations (iterative and direct sparse solvers) and updating the stiffness matrix.
Numerical acceleration techniques for speeding up convergence of numerical solution.
Element library: Brick (8 or 20 node) and Tetrahedral (4 or 10 node) elements, Cohesive interface elements.
Loading: Nodal force, Nodal displacement, Surface traction, Bogy force.
Material models: Linear elastic, Nonlinear elastic, Elastic-perfectly plastic, Linear hardening, Power-law hardening, Multi-linear hardening, Cohesive laws.
Models of plastic yielding: Tresca, Von Mises, Mohr-Coulomb, Drucker-Prager.
Program restart option.
User interfaces for fracture criteria implementation and load-feedback control.
Pre- and Post-process interfaces with third-party codes (e.g. ANSYS and MSC/Patran).
Animation display of deformed results and the process of crack propagation.
Sequential version UNIX, LINUX and WINDOWS; Parallel version on UNIX, LINUX.