Abstract
This paper addresses the fatigue behaviour of selective laser melted samples subjected to variable amplitude loading. In a first stage, a series of low-cycle fatigue tests is performed to identify an energy damage parameter able to correlate the load history with the fatigue lifetime. In a second stage, an energy-life curve is established on the basis of two tests performed under pulsating loading conditions. Finally, fatigue lifetime of samples tested at variable-amplitude loading are successfully predicted using the energy-life curve previously established along with an adequate fatigue damage accumulation law.
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Santos, L., Branco, R., Costa, J.D., Capela, C., Martins Ferreira, J.A. (2020). Fatigue Life Prediction in Selective Laser Melted Samples Under Variable Amplitude Loading Based on Two Constant-Amplitude Tests. In: Almeida, H., Vasco, J. (eds) Progress in Digital and Physical Manufacturing. ProDPM 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-29041-2_28
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DOI: https://doi.org/10.1007/978-3-030-29041-2_28
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