The problem of vehicle mobility is a complex one in that a rigorous analytical treatment of the mechanics involved between vehicle characteristics, such as geometry, size, and driving forces, and the properties and responses of soil that supports a moving vehicle has not been developed. In general, immobilization problems occur as a result of the loss of or excessive demand for traction created by a combination of sinkage, slope, forces applied, obstacles, and environmental conditions. Immobilization problems associated with poor traction due to weak soils or slippery surfaces are not limited to rigid or pneumatic-tired wheels, but also affect powered track wheels with grousers. Two approaches have been followed in attempting to solve the soil-wheel interaction problem: an analytical approach based on the elastic solution of a plane strain problem, and an experimental approach based on the relationship between shear and normal stresses that may occur within the vicinity of or at the interface of the soil and the wheel of a moving vehicle. (Modified author abstract)
Stressed and Shearing Resistance in Soil Beneath a Rigid Wheel
1974
118 pages
Report
No indication
English
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