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3 papers
A micromorphic phase-field model for brittle and quasi-brittle fracture
Ritukesh Bharali, Fredrik Larsson, Ralf Jänicke
The phase-field model for fracture, despite its popularity and ease of implementation comes with its set of computational challenges. They are the non-convex energy functional, var…
Phase-field fracture irreversibility using the slack variable approach
Ritukesh Bharali, Fredrik Larsson, Ralf Jänicke
In this manuscript, the phase-field fracture irreversibility constraint is transformed into an equality-based constraint using the slack variable approach. The equality-based fract…
A robust monolithic solver for phase-field fracture integrated with fracture energy based arc-length method and under-relaxation
Ritukesh Bharali, Somdatta Goswami, Cosmin Anitescu +1
The phase-field fracture free-energy functional is non-convex with respect to the displacement and the phase field. This results in a poor performance of the conventional monolithi…