Research Article
Deflection of Resilient Materials for Reduction of Floor Impact Sound
Table 1
Specification of resilient material specimens and test results.
| Material | Specimens | Thickness (mm) | Bottom shapes | Stress (MPa) | Strain 0.1 | Strain 0.2 | Strain 0.3 | Strain 0.4 |
| Polystyrene (PE) | PE-1 | 20 | Plat | 0.021 | 0.038 | 0.073 | 0.127 | PE-2 | 20 | Plat | 0.020 | 0.037 | 0.069 | 0.121 | PE-3 | 20 | Plat | 0.015 | 0.031 | 0.058 | 0.105 |
| Tire chip (TC) | TC-1 | 30 | Embossed | 0.044 | 0.132 | 0.179 | 0.225 | TC-2 | 30 | Embossed | 0.039 | 0.124 | 0.173 | 0.225 | TC-3 | 30 | Embossed | 0.038 | 0.115 | 0.166 | 0.213 |
| Glass wool (GW) | GW-1 | 20 | Plat | 0.033 | 0.064 | 0.115 | 0.397 | GW-2 | 20 | Plat | 0.026 | 0.056 | 0.090 | 0.161 | GW-3 | 20 | Plat | 0.022 | 0.044 | 0.076 | 0.140 |
| Ethylene vinyl acetate (EVA) | EVA-1 | 20 | Embossed | 0.022 | 0.044 | 0.070 | 0.211 | EVA-2 | 20 | Embossed | 0.014 | 0.030 | 0.100 | 0.137 | EVA-3 | 20 | Embossed | 0.010 | 0.021 | 0.039 | 0.108 |
| Ethylene polystyrene (EPS) | EPS-1 | 20 | Plat | 0.196 | 0.233 | 0.267 | 0.303 | EPS-2 | 20 | Plat | 0.196 | 0.233 | 0.263 | 0.296 | EPS-3 | 20 | Plat | 0.182 | 0.214 | 0.243 | 0.269 |
| Vinyl sheet and polystyrene (VPS) | VPS-1 | 40 | Plat | 0.036 | 0.053 | 0.075 | 0.111 | VPS-2 | 40 | Plat | 0.033 | 0.050 | 0.072 | 0.108 | VPS-3 | 40 | Plat | 0.030 | 0.047 | 0.069 | 0.105 |
| Polystyrene (SPE1) | SPE1-1 | 20 | Plat | 0.012 | 0.025 | 0.041 | 0.063 | SPE1-2 | 20 | Plat | 0.009 | 0.022 | 0.039 | 0.060 | SPE1-3 | 20 | Plat | 0.009 | 0.021 | 0.037 | 0.058 |
| Polystyrene (SPE2) | SPE2-1 | 40 | Plat | 0.010 | 0.027 | 0.043 | 0.063 | SPE2-2 | 40 | Plat | 0.009 | 0.025 | 0.041 | 0.059 | SPE2-3 | 40 | Plat | 0.008 | 0.022 | 0.038 | 0.059 |
| Polystyrene (SPE3) | SPE3-1 | 60 | Plat | 0.009 | 0.021 | 0.037 | 0.058 | SPE3-2 | 60 | Plat | 0.008 | 0.021 | 0.036 | 0.056 | SPE3-3 | 60 | Plat | 0.007 | 0.020 | 0.034 | 0.053 |
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