Experimental testing in 3-point bending of sandwich beams using additively manufactured loading bars
This study investigates the feasibility of custom-made 3D-printed loading bars of a testing machine and compares their performance to that of standard (metal) components through the 3-point bending testing of sandwich beams. Specifically, the study evaluates two types of sandwich beams: honeycomb an...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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National Institute for Aerospace Research “Elie Carafoli” - INCAS
2025-03-01
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| Series: | INCAS Bulletin |
| Subjects: | |
| Online Access: | https://bulletin.incas.ro/files/nenciu_apostol_constantinescu__vol_17_iss_1.pdf |
| Summary: | This study investigates the feasibility of custom-made 3D-printed loading bars of a testing machine and compares their performance to that of standard (metal) components through the 3-point bending testing of sandwich beams. Specifically, the study evaluates two types of sandwich beams: honeycomb and re-entrant unit cell topologies. Each type of beam was subjected to three-point bending tests using both standard and 3D-printed loading bars. The experiments indicate that the printed custom-made loading bars used as a testing accessory are a viable alternative. Further research with a larger number of samples is needed to address the potential of generating a possible defect during the printing process and its propagation during testing. |
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| ISSN: | 2066-8201 2247-4528 |