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The finite element method has been developed and used to study the creep rupture of axi-symmetrically notched round bars that are subjected to constant axial load for long periods at constant elevated temperature. The objective was to determine the multi-axial stress rupture criterion from the results of large strain uni-axial creep data and of rupture data for a particular notched round bar geometry.
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Othman et al. (1993) studied this question.
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