Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Development of a Simple Rate-Sensitive Model II (Material Parameters and Modification)

간단한 전단속도 의존적 모델의 개발 II (모델변수 및 간략화)

  • Kim, Dae-Kyu (Dept. of Civil Engineering, Sangmyung University)
  • Published : 2009.02.28
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Abstract

This study presents the analysis of the identifications and determinations of the material parameters in the developed model in the former paper and their effects on the stress paths. It was shown that the influences of the parameters, specially involved in the strain rate and the viscous nucleus, were in generally acceptable range. From this point, the model was modified by identifying the plastic yield surface and the viscous yield surface in the same mathematical form. The modified model was successful in simulating stress path.

본 논문에서는 전편에 개발된 간단한 전단속도 의존적 구성모델의 각 모델변수에 대한, 정의, 값 결정법 및 결과에 미치는 영향 등에 대하여 분석하였다. 분석결과, 특히 전단속도 및 점성 핵 관련 모델변수의 영향이 보편적 범위 내에 있는 것으로 나타났다 이러한 관점에서 점성 및 소성 항복면을 동일시하는 개념의 모델 간략화 수정을 하였으며, 결과는 비교적 성공적으로 나타났다.

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References

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  1. Validation of a Rate-Sensitive Model for Clayey Soils vol.10, pp.3, 2009, https://doi.org/10.5762/KAIS.2009.10.3.596