The article presents a thermographic method of accelerated determination of the Wöhler’s curve. In the presented method, the Wöhler’s curve was developed based on energy-related parameter with the assumption of its dependency on the stress amplitude. The tests made on 2024-T3 aluminum alloy under axial tension-compression loading (R=−1) revealed that the S-N curve obtained by accelerated thermographic method fits inside 95% confidence interval for the S-N curve obtained from the full test.

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