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The paper describes a robust finite element model of interface motion in media with multiple domains and junctions, as the case in polycrystalline materials. The adopted level set framework describes each domain (grain) with a single level set function, while avoiding the creation of overlap or vacuum between these domains. The finite element mesh provides information on stored energies, calculated from a previous deformation step. Nucleation and growth of new grains are modelled by insertingdoi:10.1088/0965-0393/17/6/064006 fatcat:rhwwwxheercb3dnem5fladtqgu