Methods for generalization of experimental results in terramechanics

Sitkei, György; Pillinger, György; Máthé, L.; Gurmai, L.; Kiss, Péter

doi:10.1016/j.jterra.2018.05.004

Cited by 7 publications

(4 citation statements)

References 1 publication

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“…This resulted in the upper layer behaving as infinite space and the lower layer as finite space. There was no possibility to gain one simple equation as in formula (1) for the measurements, instead of that separate parts of the curves of the measurements can be obtained with formula (1). The transition points from the infinite to finite space can be seen clearly in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The difference between the loose upper layer and the hard layers underneath cause difference in the pressure distribution. A firm layer fundamentally modifies the pressure distribution in the soil body [1].…”

Section: Introductionmentioning

confidence: 99%

“…An extension of the infinite half space to the finite half space exists but is not widely known. In the agricultural soil, because of the tillage process, the load carrying capacities differ at different depths and the load carrying capacity factor k would be correct [1].…”

Section: Introductionmentioning

confidence: 99%

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Soil behaviour under load in case of finite thickness

Salman

Pillinger

Kiss

2021

International Review of Applied Sciences and Engineering

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This study intends to examine the soil behaviour in the case of finite thickness, represented by the hard layer under a soft layer of soil. A further aim is to define load-bearing capacity parameters (n and k). The experimental work is carried out under laboratory conditions by using hydraulic bevameter to apply the load. A circular plate with a diameter of 100 mm is used to push down the load over the targeted area with a penetration rate of about 9 cm/min for sinkage plates. The study was conducted in a soil bin (length of 200 cm, width of 100 cm and variable thickness) using a sandy loam soil. First, the study has been done with loose soil with a thickness of 11 cm, which maintained with 10% moisture content and initial density of 1.190 g/cm3. After that, a two thickness of 6 and 18 cm with 8% moisture content and initial soil density of 1.375 g/cm3 were tested to explain the effect of thickness. In each test, the bevameter plate was loaded at multiple locations, the result showed the soil was near uniform. The result suggests that it is not easy to obtain one equation for the load bearing capacity because the layer near to the surface behaves like soil with infinite thickness and the deeper layer like soil with finite thickness.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soil behaviour under load in case of finite thickness

Salman

Pillinger

Kiss

2021

International Review of Applied Sciences and Engineering

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“…J.Y.Wong found that both the Bekker and the Reece pressure-sinkage models can be used for mineral soils and suggested the weighted least squares method to be used to determine these soil parameters [6]. Saakyan offered simplest flat plate pressure-sinkage relationship equation ( 5) derived from the Boussinesq theory of the elastic half space [11]:…”

Section: Conventional Modelsmentioning

confidence: 99%

A study of pressure-sinkage relationship used in a tyre-terrain interaction

Salman¹,

Kiss²

2019

IJEMS

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The vehicle applies a normal load to the terrain, which causes sinkage and motion resistance. To forecast the normal pressure distribution on the interface of a vehicle–terrain and the tractive performance of a vehicle, the response of the terrain to normal load (which is characterized by pressure–sinkage relationship equations) must be measured. This paper presents the common conventional pressure sinkage models used in terramechanic and the modification that happened to this models. In addition the features of the new models.

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