Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Soil Stress State Determination Using a Ball-type Transducer

Ball형 측정기를 이용한 토중 응력 상태의 계측

  • Published : 2004.08.01
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Abstract

Soil stresses were measured beneath the centerline of one new 12.4R28 radial-ply tractor tire. The tire was operated with three inflation pressures(59㎪ 108㎪ and 157㎪) and a dynamic load of 14.2 kN and 20% slip. Soil stress state transducer(SST) measured the stresses in a hardpan soil profile. The depth of the SST was 250mm from soil surface. Analysis of the original soil stress data showed that the inflation pressure of tire did significantly affect the vertical stress. The major principal stresses calculated were more when the inflation pressure was 108㎪ than when it was 157㎪. The peak stresses of the major principal stresses presented more than those of the vertical stresses.

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References

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