Fatigue analysis of wire arc additive manufactured (3D printed) components with unmilled surface
| Autor: | Ronny Kühne, Simon Schaffrath, Sandro Citarelli, Markus Feldmann, Helen Bartsch |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Surface (mathematics)
3d printed Materials science 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Welding Fatigue limit 0201 civil engineering law.invention Arc (geometry) Stress (mechanics) law 021105 building & construction Architecture Surface roughness Composite material Safety Risk Reliability and Quality Civil and Structural Engineering |
| Zdroj: | Structures. 31:576-589 |
| ISSN: | 2352-0124 |
| DOI: | 10.1016/j.istruc.2021.01.068 |
| Popis: | First investigations have been carried out on the characterisation of the as-welded surface roughness of unmilled wire arc additive manufactured (WAAM) components, followed by an experimental determination of the fatigue strength. Subsequently, randomly based finite-element (FE) simulations are carried out to expand the findings. The statistical characteristics of the surface provide the input values for the Monte-Carlo (MC) simulation. Here, the fatigue strengths of single-wire and multiple-wire welded components have been compared applying the effective notch stress concept performing over 2200 simulations. Finally, a fatigue detail classification for surfaces of WAAM components is given following the principles of EN 1993-1-9 [1]. |
| Databáze: | OpenAIRE |
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