Do entrepreneurs construct new cognitive frameworks or adapt existing ones in unstable, transforming industry contexts, and what importance do existing mental models, in particular the value chain, take on for them? The official discourses, mission and vision statements of the 21 most visible online music ventures were analyzed using mixed methods to capture the representations of the digital music industry of the entrepreneurs at their helm. The managerial cognition of digital music entrepreneurs challenges all the dominant logics and industry recipes of the traditional music industry and encounters no cognitive barriers. The cognitive frame of the value chain remains prevalent however in the representations of digital music entrepreneurs, and restrains them from embracing the specificities of the creative industries.

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A direct numerical simulation of the cyclic response of a 250 grain polycrystalline aggregate over more than 1000 cycles is presented, which belongs to the few available simulations including a significant number of cycles. It provides unique results on the evolution of accumulated plastic strain and ratcheting phenomena inside the grains. Even though the average stress strain response is stabilized after 500 cycles, unlimited ratcheting is observed at some locations close to grain boundaries and triple junctions. A clear surface effect of the ratcheting behavior is evidenced based on an appropriate combination of Dirichlet, Neumann and periodic boundary conditions. The magnitude of the ratcheting indicator is found to be significantly higher at the free surface than in the middle section of the aggregate. The studied material is pure tantalum tested at room temperature for both single and polycrystalline samples used for parameter identification of the crystal plasticity model. Special attention is dedicated to the modeling of static strain aging effects observed in this material.