Phase-field modeling of brittle fracture with multi-level hp-FEM and the finite cell method
@article{Nagaraja2018PhasefieldMO, title={Phase-field modeling of brittle fracture with multi-level hp-FEM and the finite cell method}, author={S. Nagaraja and M. Elhaddad and M. Ambati and S. Kollmannsberger and L. Lorenzis and E. Rank}, journal={Computational Mechanics}, year={2018}, volume={63}, pages={1283-1300} }
The difficulties in dealing with discontinuities related to a sharp crack are overcome in the phase-field approach for fracture by modeling the crack as a diffusive object being described by a continuous field having high gradients. The discrete crack limit case is approached for a small length-scale parameter that controls the width of the transition region between the fully broken and the undamaged phases. From a computational standpoint, this necessitates fine meshes, at least locally, in… CONTINUE READING
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