한국CDE학회논문집 (Korean Journal of Computational Design and Engineering)

  • 제20권3호
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  • Pages.230-237
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  • 2015
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  • 2508-4003(pISSN)
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  • 2508-402X(eISSN)
한국CDE학회 (Society for Computational Design and Engineering)
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DEM 모델을 이용한 평판재하시험의 토양 수직응력 해석

Soil Stress Analysis Using Discrete Element Method for Plate-Sinkage Tests

  • Jang, Gichan (Dept. of Mechanical Engineering, Myongji Univ.) ;
  • Lee, Soojin (Dept. of Mechanical Engineering, Myongji Univ.) ;
  • Lee, Kyu-Jin (Dept. of Mechanical Engineering, Myongji Univ.)
  • 투고 : 2015.03.30
  • 심사 : 2015.05.05
  • 발행 : 2015.09.01
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초록

Soil deformation on the off-load ground is significantly affected by soil conditions, such as soil type, water content, and etc. Thus, the soil characteristics should be estimated for predicting vehicle movements on the off-load conditions. The plate-sinkage test, a widely-used experimental test for predicting the wheel-soil interaction, provides the soil characteristic parameters from the relationship between soil stress and plate sinkage. In this study, soil stress under the plate-sinkage situation is calculated by the DEM (Discrete Element Method) model. We developed a virtual soil bin with DEM to obtain the vertical reaction forces under the plate pressing the soil surface. Also parametric studies to investigate effects of DEM model parameters, such as, particle density, Young's modulus, dynamic friction, rolling friction, and adhesion, on the characteristic soil parameters were performed.

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참고문헌

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피인용 문헌

  1. Discrete element method for the characterization of soil properties in Plate-Sinkage tests vol.30, pp.6, 2016, https://doi.org/10.1007/s12206-016-0536-4