Snow-road light-truck tire testing

Abstract Operating temperature is critical to the endurance life of a tire. Fundamental differences between operations of a tire on a flat surface, as experienced in normal highway use, and on a cylindrical test drum may result in a substantially higher tire temperature in the latter case. Nonetheless, cylindrical road wheels are widely used in the industry for tire endurance testing. This paper discusses the important effects of surface curvature on truck tire endurance testing and highlights the impact that curvature has on tire operating temperature. Temperature measurements made during testing on flat and curved surfaces under a range of load, pressure and speed conditions are presented. New tires and re-treaded tires of the same casing construction were evaluated to determine the effect that the tread rubber and pattern have on operating temperatures on the flat and curved test surfaces. The results of this study are used to suggest conditions on a road wheel that provide highway-equivalent operating conditions for truck tire endurance testing.

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Comprehensive Study of the Performance of Winter Tires on Ice, Snow, and Asphalt Roads: The Influence of Tire Type and Wear

Tire Science and Technology ◽

10.2346/tire.17.450304 ◽

2017 ◽

Vol 45 (3) ◽

pp. 175-199 ◽

Cited By ~ 2

Author(s):

Mattias Hjort ◽

Olle Eriksson ◽

Fredrik Bruzelius

Keyword(s):

Vehicle Performance ◽

Testing Facility ◽

Recorded Data ◽

Winter Road ◽

Tire Testing ◽

Tire Forces ◽

Real Traffic ◽

Real Vehicle ◽

Comprehensive Study

ABSTRACT This work presents a comprehensive study of the performance of winter tires on snow, ice, and asphalt. A set of 77 different winter tires were carefully selected for the study. Of these, 27 were new and 50 were worn from real traffic use. All three tire types for winter conditions (Nordic, European, and studded) were represented. All tires have been tested using a mobile tire-testing device for snow and asphalt and using a stationary tire-testing facility for ice. Both devices recorded the tire forces and motions, enabling a close to complete stationary characterization of the tires. In addition, 42 of the tires were tested on a passenger car, where brake performance was evaluated for the three different road conditions. This enables a comparative study of performance between tire types and wear for various winter road conditions. The results suggest that the recorded data represent real vehicle performance. Some conclusions from the measurements are that the effect of wear is consistent between the tire groups and that the performance degradation is most noticeable on studded tires on ice and on European tires on snow.

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An apprentice mechanic died when the truck tire he was standing over exploded.

10.26616/nioshsface05ca007 ◽

2006 ◽

Keyword(s):

Truck Tire

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INLAND DURASPRING

Alloy Digest ◽

10.31399/asm.ad.sa0496 ◽

1998 ◽

Vol 47 (5) ◽

Keyword(s):

Fracture Toughness ◽

Tensile Strength ◽

Tensile Properties ◽

High Stress ◽

High Strength ◽

Spring Steel ◽

Fatigue Properties ◽

Light Truck ◽

Suspension Systems ◽

Spring Steels

Abstract Inland DuraSpring is a high-strength microalloyed spring steel for use in high stress coil springs for automobile and light truck suspension systems. This bar product offers significant improvements in tensile strength, fatigue properties, and fracture toughness compared to conventional spring steels. This datasheet provides information on composition, hardness, and tensile properties as well asfracture toughness and fatigue. Filing Code: SA-496. Producer or source: Ispat Inland Inc.

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