Fig. 4From: A non-intrusive global/local approach applied to phase-field modeling of brittle fracturea The possible complex nature of \(\partial \Omega _F\) illustrating equation (37); b choice of \(\Omega _L\) that results in \(\partial \Omega _F\cap \Gamma _{N,1}=\emptyset \) for \(\Omega _F\)Back to article page