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The concept of using a weighted amplitude to determine the fatigue life of load stress blocks

Obrał Justyna

Journal of Theoretical and Applied Mechanics

2021

Vol. 59 nr 3

515--518

This work shows the model for determining the fatigue life of block loads. The proposed model is a kinematic model that can be used using a linear fatigue characteristic, i.e. in the range of a large number of cycles. The model has been developed on the basis of the previous hypotheses of cumulation of damage by Palmgren-Miner using a weighted amplitude of m-degree. The final version proposes calculation of the variable amplitude of the average based on these two models.