A Comparison of 25 High Speed Tire Disablements Involving Full and Partial Tread Separations

Beauchamp, Gray; Koch, Daniel; Thornton, Dana E.

doi:10.4271/2013-01-0776

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…The tires were cut along the bias of the tread and through the shoulder blocks around the circumference of the tire. The specific method of preparation was covered in detail within a previous publication [1]. Figure 2 is an image of a tire prepared for testing.…”

Section: Tiresmentioning

confidence: 99%

“…Of the 29 tests analyzed within this publication, 25 of the tests were previously published [1]. The effect of the tire disablement on the vehicle's path, as well as the steering inputs required to maintain the vehicle's path were the focus of the first publication.…”

Section: Testsmentioning

confidence: 99%

“…In other tread separation testing performed by Tandy, the longitudinal deceleration and path deviation were described as being much less, although not specifically quantified. This paper's authors previously reported the results of 25 high speed tire disablements [1]. The focus of that study were the effects of the tire disablement on the vehicle and the steering inputs required to maintain the vehicle's path.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Deceleration Rates of Vehicles with Disabled Tires

Koch¹,

Beauchamp²,

Pentecost³

2017

SAE Technical Paper Series

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Section: Tiresmentioning

confidence: 99%

Section: Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Deceleration Rates of Vehicles with Disabled Tires

Koch¹,

Beauchamp²,

Pentecost³

2017

SAE Technical Paper Series

Self Cite

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Speed Analysis of Yawing Passenger Vehicles Following a Tire Tread Detachment

Beauchamp¹,

Pentecost²,

Koch³

et al. 2019

SAE Int. J. Adv. & Curr. Prac. in Mobility

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<div class="section abstract"><div class="htmlview paragraph">This paper presents yaw testing of vehicles with tread removed from tires at various locations. A 2004 Chevrolet Malibu and a 2003 Ford Expedition were included in the test series. The vehicles were accelerated up to speed and a large steering input was made to induce yaw. Speed at the beginning of the tire mark evidence varied between 33 mph and 73 mph. Both vehicles were instrumented to record over the ground speed, steering angle, yaw angle and in some tests, wheel speeds. The tire marks on the roadway were surveyed and photographed.</div><div class="htmlview paragraph">The Critical Speed Formula has long been used by accident reconstructionists for estimating a vehicle’s speed at the beginning of yaw tire marks. The method has been validated by previous researchers to calculate the speed of a vehicle with four intact tires. This research extends the Critical Speed Formula to include yawing vehicles following a tread detachment event. The Critical Speed Formula was found to produce results of acceptable and known accuracy, provided the appropriate inputs are used for the given situation and several guidelines are observed. The inputs and guidelines for the use of the Critical Speed Formula for these tread detachment scenarios are discussed.</div><div class="htmlview paragraph">For all tests analyzed, the tire mark evidence was documented with survey equipment, photographs and drone footage. In the past, it may have been necessary to take tire mark radius measurements in the field for use in the Critical Speed Formula. However, with the advent of modern documentation techniques, radius measurements can be taken from a scaled scene diagram and acceptable accuracy in the speed calculations can be achieved.</div></div>

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Impact Testing of Passenger Vehicle and Semi-Truck Pneumatic Tires and Rims

Asay¹,

Woolley²,

Nielson³

2023

SAE Technical Paper Series

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<div class="section abstract"><div class="htmlview paragraph">Wheels and tires on vehicles, are often directly (or indirectly) involved in collisions with other vehicles or fixed objects. In this study, the effects of the pneumatic tire and rim, as it contributes to a dynamic collision, was isolated and studied. A total of 15 mounted tires of various common sizes were selected to conduct 35 dynamic impact tests into the flat face of an instrumented concrete barrier. The tires and rims used in the tests ranged from heavy truck, light truck, down to common passenger vehicle tires. Each of the 15 tires and rims were impact tested individually to failure in order to explore the dynamic response and performance of pneumatic tires in collisions. Of the 35 tests, 28 were conducted with a single tire and rim configuration and 7 tests were conducted simulating a dual truck tire configuration. It was determined that the coefficient of restitution for 22 of the tire impacts into the rigid flat faced barrier were remarkably similar, around 0.9 ± 0.1. Additionally, three full-scale impact tests were conducted using four heavy truck tires, mounted in parallel with offsets typical of dual tire spacing, to impact the front, rear, and side of a mid-size SUV. The coefficient of restitution ranged between 0.31-0.33 for all three impacts. The acceleration and integrated velocity pulses of those same three tests were also compared with previous published research of narrow frontal object impacts and found to have good correlation. These instrumented pneumatic tire and rim tests provide well-documented real-world type tests that can be used for future evaluation, comparison, or simulation of similar applicable type collision events. They also provide a foundational basis for future exploration of the role of the pneumatic tires directly involved in impacts.</div></div>

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A Comparison of 25 High Speed Tire Disablements Involving Full and Partial Tread Separations

Cited by 3 publications

References 7 publications

Deceleration Rates of Vehicles with Disabled Tires

Deceleration Rates of Vehicles with Disabled Tires

Speed Analysis of Yawing Passenger Vehicles Following a Tire Tread Detachment

Impact Testing of Passenger Vehicle and Semi-Truck Pneumatic Tires and Rims

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