Table 1.
Experimental groups and codes.
| Quantity of glass fibers (%) | Type of resinous materials | |
|---|---|---|
| Filled resin (FR) | Unfilled resin (UR) | |
| 0 | 0-FR | 0-UR |
| 10 | 10-FR | 10-UR |
| 15 | 15-FR | 15-UR |
| 20 | 20-FR | 20-UR |
| 30 | 30-FR | 30-UR |
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