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Shabir, Z. (author), Van der Giessen, E. (author), Duarte, C.A. (author), Simone, A. (author)Two different approaches to intergranular crack propagation in brittle polycrystals are contrasted. Crack paths resulting from a method that allows a detailed description of the stress field within a polycrystal are compared to cracks dictated by topological considerations. In the first approach, a fracture path is determined with a Generalized...conference paper 2009