Work is described to examine the value of hydrostatic proof pressure testing in selecting used tire carcasses for retreading. Preliminary experiments on single tire cords indicate that overloads close to rupture do not damage subsequent fatigue life. A selected population of used 15-inch passenger car tires was selected and burst hydrostatically yielding a wear burst pressure of 207 psi. Additional tires are to be retreaded after pressurization to 170 psi. Their performance on MVSS 109 will be compared with an unpressurized control set of tires which are also to be recapped.
Pressure Effects on Worn Passenger Car Tire Carcasses
1975
35 pages
Report
Keine Angabe
Englisch
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