Evaluating the Impact of Sample Irregularities on the Dynamic Stiffness of Polyurethane: Insights from Experimental and FEM Analysis
Krzysztof Nering, Arkadiusz Kwiecień, Konrad Nering · 2024
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Description
Krzysztof Nering, Arkadiusz Kwiecien, and Konrad Nering examined in two thousand twenty-four how tiny surface flaws distort stiffness tests on polyurethane. Such foams damp vibration and sound in buildings, so accurate testing matters. They shook block-shaped and cylinder-shaped samples of three polyurethane types and compared results with computer models of flawless samples.
Even very small bumps on the contact surface changed the measured stiffness a lot, especially in stiffer materials. Cylinder samples gave steadier, more repeatable readings than blocks. Engineers who test insulation materials learn to control sample shape and surface quality, or their numbers may mislead building designs.
Catalog record
| CREATOR | Krzysztof Nering, Arkadiusz Kwiecień, Konrad Nering |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 31 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |