TY - RPRT TI - An optimization‐based phase‐field method for continuous‐discontinuous crack propagation AU - Geelen, Rudy J. M. AU - Liu, Yingjie AU - Dolbow, John E. AU - Rodríguez-Ferran, Antonio PY - 2018 DO - 10.1002/nme.5911 UR - https://www.osti.gov/biblio/1461701 ID - 1461701 ER -