Applicability of strain energy density criterion for fracture prediction of notched PLA specimens produced via fused deposition modeling
| Autor: | Luca Susmel, Paul Seibert, Markus Kästner, Filippo Berto, Seyed Mohammad Javad Razavi |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
3D-printing
strain energy density Materials science animal structures local approaches deposition Control volume fracture toughness law.invention fracture mechanics fused deposition modeling strain energy 3-D printing deposition modeling failures prediction fracture prediction fractures mechanics notch 3D printing Fracture toughness law Range (statistics) General Materials Science Composite material Fused deposition modeling Mechanical Engineering Strain energy density function Radius Complex materials Mechanics of Materials Fracture (geology) |
| Zdroj: | Engineering Fracture Mechanics |
| ISSN: | 0013-7944 |
| Popis: | The Averaged Strain Energy Density (ASED) criterion is validated for the failure prediction of notched Polylactide Acid specimens fabricated by Fused Deposition Modeling by means of experimental data and the results are compared to the Theory of Critical Distances. The common approach of estimating the ASED control volume radius based on the measured fracture toughness was shown to be suboptimal, arguably because of the difficulties of obtaining the fracture toughness with such complex materials. Therefore, a more robust approach is evaluated in analogy of the TCD and it is shown to successfully extend the range of applicability of the ASED criterion. |
| Databáze: | OpenAIRE |
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