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Title: Performance of Soils Under Tire Loads. Report 4, Analysis of Tests in Sand from September 1962 Through November 1963
Authors: Turnage, Gerald W.
Green, A.J. (Andrew J.)
Mobility and Environmental Systems Laboratory (U.S.)
Keywords: Tires
Publisher: U.S. Army Engineer Waterways Experiment Station
Series/Report no.: Technical Report (U.S. Army Engineer Waterways Experiment Station);no. 3-666 rept.4
Abstract: The effects of tire deflection, tread, carcass stiffness, construction, speed, and slip on tire performance in a dry sand arc examined. Laboratory test results indicate that for best performance in a dry sand a tire should lie highly deflected, smooth, and of diagonal-ply construction. Variations in carcass stiffness have negligible effects on tire performance when deflections and loads are equal. It was concluded that the performance of pneumatic tires in sand is affected by speed; however, the extent of this influence is not wholly determined. Logical, orderly relations are shown between slip and several independent and dependent variables--wheel load, soil strength, pull, and single--both at the towed and maximum pull points. A direct relation is shove between the pull developed by a 4x4 vehicle and that developed by a single wheel in multiple passes. Good agreement was attained in this relation for both Yuma (desert) and mortar sand. Significant differences in tire performance registered in Yuma and mortar sands at corresponding strength levels prompted a study of the physical characteristics of the two soils. This study revealed notable differences in the strength characteristics that explain a portion of the differences in tire performance in the two sands.
Description: Technical Report
Gov't Doc #: Technical Report No. 3-666 Report 4
Rights: Approved for public release; distribution is unlimited
Size: 115 pages / 4.960Mb
Types of Materials: PDF/A
Appears in Collections:Technical Report

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