Browse Publications Technical Papers 2008-01-0149
2008-04-14

Development for an Aged Tire Durability Standard - Accelerated Laboratory Dynamic Aging 2008-01-0149

In the work leading to the TREAD Act, some members of Congress expressed the need for some type of aging test on light vehicle tires. Since no industry-wide recommended practice existed, the ASTM F9.30 Aged Tire Durability task group was established in 2002 to develop a test standard. After several years of phase 1 research, the task group identified key learning about both static and dynamic laboratory aging. Accelerated aging conditions for both approaches were examined by statistically and empirically analyzing property changes of both field and laboratory aged tires relative to the corresponding properties of a new tire. The research encompassed the evaluation of test data from field tires that were directly compared and analyzed against the data generated from tires that were laboratory aged on an accelerated basis.
This paper focuses on the effects of dynamic laboratory aging on a 1.7-meter roadwheel using a five variable statistical design.

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