Research Article
Mechanical Properties of Sandwiched Construction with Composite and Hybrid Core Structure
Table 5
The flexural test results for open and closed structures with PLA and TPU.
| Materials | δmax (mm) | Pmax (kN) | δy (mm) | Py (kN) | τmax (MPa) | τy (MPa) | σmax (MPa) | σy (MPa) |
| Open PLA | 2.91 | 0.72 | 2.18 | 0.66 | 0.53 | 0.49 | 53.33 | 49.48 | Open TPU | 22.48 | 0.12 | 20.30 | 0.10 | 0.08 | 0.08 | 8.88 | 8.07 | Closed PLA | 5.95 | 0.96 | 5.24 | 0.89 | 0.71 | 0.65 | 71.11 | 65.92 | Closed TPU | 7.26 | 0.28 | 6.90 | 0.26 | 0.20 | 0.19 | 20.74 | 19.85 | PLA–PUR | 7.67 | 1.64 | 7.00 | 1.56 | 1.21 | 1.15 | 121.48 | 115.78 | TPU–PUR | 7.68 | 0.72 | 5.62 | 0.69 | 0.53 | 0.51 | 53.33 | 51.48 |
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