Elastomers, strength mechanical fatigue

Polyurethane elastomers are promising materials for solid tires and track pads for tanks. There is little systematic study reported of the relationship between the specific chemical compositions of a series of chemically similar polyurethanes and their hysteresis and other properties thought to influence elastomer performance on heavy vehicles. In this work, the characteristics of a group of polyurethanes are reported, including the thermal properties, mechanical properties at elevated temperatures, hardness, tear strength and compressive fatigue behavior. Abrasion resistance is also an important property, but the correlation between laboratory tests and road tests is frequently poor. Abrasion resistance will not be discussed here. 

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