Numerical analysis of fully explicit phase-field models for dynamic fracture of materials H/F

Description de l'offre

Understanding material fracture is paramount in the nuclear industry to ensure the structural integrity and long-term safety of critical components. Therefore, accurately simulating the onset of cracks and their propagation is essential.

Among several approaches to simulate the fracture of materials, the phase-field approaches have gain popularity in the last years. In recent developments the phase-field approaches have been extended to situations where both the mechanical response and the crack-driving variable evolve dynamically. In such formulations, the mechanical equilibrium is governed by an hyperbolic equations, while the phase-field variable itself can also follow an hyperbolic evolution law that captures inertia or rate-dependent effects in the damage process. Explicit schemes are attractive for dynamic fracture because they naturally accommodate wave propagation and avoid the repeated solution of large nonlinear systems....