Defect-based fatigue model for additive manufacturing

نویسندگان

چکیده

Abstract A novel defect-based fatigue model for the prediction of S–N (stress versus number cycles) data points and curves is proposed in this paper. The capable predicting material performance based on defect size location from surface. factor was introduced obtained notch theory, which considers sensitivity as well stress concentration using finite element method. newly developed equation applied to represent relationship between factor, AlSi10Mg samples were manufactured laser powder bed fusion, then machined. tested under rotational bending cyclic loading until failure. failed analysed scanning electron microscopy it found that cracks initiated defects located at measured used predict cycles an model. This validated by comparing predicted experimentally data. has potential be component-level assessment integrated into industrial quality assurance workflows. For instance, can each produced component directly assessed against could enable rapid approval certification future additively components, unleash commercial additive manufacturing light-weight multi-functional designs.

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ژورنال

عنوان ژورنال: Progress in additive manufacturing

سال: 2022

ISSN: ['2363-9512', '2363-9520']

DOI: https://doi.org/10.1007/s40964-022-00376-6