| Autor: |
Gurunathan, C., Gnanamoorthy, R., Jayavel, S. |
| Zdroj: |
International Journal of Plastics Technology; Dec2016, Vol. 20 Issue 2, p265-278, 14p |
| Abstrakt: |
Machine elements such as bearings and gears made of polymer and its composites often fail by wear and/or contact fatigue. During service, the temperature of these machine elements increases because of heat generation due to friction and/or hysteresis and it degrades the material properties. The low thermal conductivity of polymer results in heat accumulation in the surface and sub-surface regions and causes accelerated wear. Product design by following selective reinforcement that will facilitate less heat buildup may increase the product performance. Here, an attempt is made to develop products by following selective reinforcement approach. The effect of reinforcement form i.e. particulate and networked structure on temperature distribution in polyamide 6 composite subjected to sliding conditions is studied using simplified numerical technique. The results reveal that the selective reinforcement technique reduces the surface temperature during sliding. The three-dimensional and continuous nature of networked structure offers low thermal resistant conductive path for effective heat transfer and reduces the surface temperature considerably compared to the particulate form. The current study reveals that in networked reinforcement, the cell size and/or relative density play an important role in heat transfer during sliding which strongly influences the product performance. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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