期刊
PROGRESS IN ADDITIVE MANUFACTURING
卷 7, 期 6, 页码 1225-1238出版社
SPRINGERNATURE
DOI: 10.1007/s40964-022-00296-5
关键词
Random field; Robust design; Fatigue improvement; Thickness tailoring; Additive manufacturing
资金
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [EXC 2163/1, 390881007]
- Projekt DEAL
This study presents an approach to improve the fatigue life of additively manufactured structures and simultaneously reduce the influence of random variations in local thickness.
Additive manufacturing allows designers to create geometries that would not be possible or economical to manufacture using traditional manufacturing processes. Production with these technologies does, however, introduce a large amount of variation and additional unknowns. These random variations from idealized geometry or material properties can harm the performance of the design. The current work presents an approach to improve the fatigue life of such structures, and simultaneously reduce its influence from random variations in local thickness. Following an initial numerical study, the results are experimentally validated. Experimental results show a significant improvement in fatigue life in the redesigned sample with a tailored thickness distribution.
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