Instability of the printing jet during the three-dimensional-printing process
Euler’s instability criterion is widely used in engineering to design a column. However, this criterion is not suitable for judging the instability of a three-dimensional printing process because the axial motion of the printing jet has to be considered. A variational principle is established, and a...
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| Auteurs principaux: | , |
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| Format: | article |
| Langue: | EN |
| Publié: |
SAGE Publishing
2021
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| Accès en ligne: | https://doaj.org/article/1506fab0250045c3aa02d4b0a9c9593c |
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| Résumé: | Euler’s instability criterion is widely used in engineering to design a column. However, this criterion is not suitable for judging the instability of a three-dimensional printing process because the axial motion of the printing jet has to be considered. A variational principle is established, and an equivalent Eulerian load is obtained. The theoretical results show that a higher printing velocity makes the moving jet much more stable, and an experiment is designed to verify our theoretical prediction. |
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