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- W2371766000 abstract "Structural members of FPSO's hull often undergo fairly large static loading before they enter service or variable amplitude cyclic loading when they are in service.These loadings and high initial residual stress are expected to cause the residual stress relaxation.Hence, the effect of residual stress relaxation must be considered for fatigue strength assessment of this kind of structure.In this paper,through FEM residual stress relaxation at hot spot is studied under arbitrary variable amplitude cyclic loading,and the relation of the sum of residual stress relaxation, residual stress and the applied load is revealed.Then applying this relation, an improved fatigue strength formula is modified.Moreover, the results by the modified formula agreed with the experiment results.Therefore, through the modified improved formula,fatigue strength of typical welded joints under arbitrary variable amplitude cyclic loading could be obtained more reasonably.In addition, some fatigue behaviors of these kinds weld joints in experiments could be explained reasonably." @default.
- W2371766000 created "2016-06-24" @default.
- W2371766000 creator A5045957567 @default.
- W2371766000 date "2009-01-01" @default.
- W2371766000 modified "2023-09-23" @default.
- W2371766000 title "A modified fatigue strength formula of typical weld joints based on residual stresses relaxation of FPSOs" @default.
- W2371766000 hasPublicationYear "2009" @default.
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