A first assessment of product durability of an SLM Ti6Al4V conrod with a lightweighted structure was developed. Full-scale fatigue testing and finite element analyses of testing conditions were performed to determine stress cycles in critical regions. End of life (EOL) and metallurgical analysis completed the study. A fatigue diagram covering the finite life and estimating the infinite life load levels, difficult to estimate a priori, was obtained; this is the first relevant result toward fatigue assessment of AM components. Fatigue life for the SLM conrod was lower than the conventional one, however, EOL analysis pointed out potential future improvements.
Fatigue testing and end of life investigation of a topology optimized connecting rod fabricated via selective laser melting
Cecchel S.
;Cornacchia G.;Avanzini A.;Battini D.;
2022-01-01
Abstract
A first assessment of product durability of an SLM Ti6Al4V conrod with a lightweighted structure was developed. Full-scale fatigue testing and finite element analyses of testing conditions were performed to determine stress cycles in critical regions. End of life (EOL) and metallurgical analysis completed the study. A fatigue diagram covering the finite life and estimating the infinite life load levels, difficult to estimate a priori, was obtained; this is the first relevant result toward fatigue assessment of AM components. Fatigue life for the SLM conrod was lower than the conventional one, however, EOL analysis pointed out potential future improvements.| File | Dimensione | Formato | |
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Fatigue testing and end of life investigation of a topology optimized connecting rod fabricated via selective laser melting_compr ok.pdf
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