The present work shows the relevance of the numerical simulation in the case of plastic buckling of thick cylindrical shells under axial compression. It is well known that the cylindrical shells can exhibit several critical configurations. Furthermore, the difficulty to corroborate the test and the simulation resides in the presence of different modes of bifurcation for the near loads. Herein, this difficulty is examined, based on an analysis of possible plastic bifurcation along the incremental path, this leads to the possible estimation of the real behavior.
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