Research Article
Damage Characterization of Polypropylene Honeycomb Sandwich Panels Subjected to Low-Velocity Impact
Table 2
Average impact parameters for sandwich samples with PP honeycomb core impacted at 15, 30, and 45 J for core thicknesses of 20, 40, and 60 mm.
| Thickness (mm) | Impact energy (J) | Max. load (N) | Total impact time (ms) | Damage area (cm2) | Indentation Depth (mm) |
| 20 | 15 | 1989.4514 | 4.00 | 1.5320 | −5.2761 | 30 | 1726.7223 | 6.60 | 1.5475 | −5.3181 | 45 | 1788.9875 | 6.80 | 1.5559 | −2.2511 |
| 40 | 15 | 1597.6357 | 4.80 | 1.4773 | −4.6319 | 30 | 1954.5221 | 5.20 | 1.6559 | −4.8169 | 45 | 1673.5691 | 8.20 | 2.1028 | −5.7358 |
| 60 | 15 | 1746.4650 | 4.00 | 1.5667 | −3.8154 | 30 | 2835.3479 | 3.80 | 1.4694 | −4.4013 | 45 | 2704.7427 | 5.40 | 1.6627 | −5.7969 |
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