Numerical Simulation for Characteristics of Rock Strength and Deformation Using Grain-Based Distinct Element Model
Brittleness
DOI:
10.7474/tus.2014.24.3.243
Publication Date:
2014-07-31T07:32:15Z
AUTHORS (4)
ABSTRACT
본 연구에서는 GBM-UDEC(grain based model combined with Universal Distinct Element Code) 모델을 통해 암석의 역학적 거동을 모사하기 위한 수치해석기법을 소개하였다. 이를 적용하여 광물학적 구조를 다각형 입자의 집합체로 표현하고, 압축하중 하에서 파괴 특성 및 인장균열의 전파 양상를 살펴보았다. 제시된 수치해석모델은 단축압축강도시험 간접인장강도시험을 관찰되는 거동 특성을 합리적으로 모사할 수 있는 것으로 나타났다. The present study introduces a numerical technique to simulate the mechanical behavior of brittle rock, on grain-based Code (GBM-UDEC). Using technique, microstructure rock sample was represented as an assembly deformable polygonal grains, and failure process evolution micro tensile cracks under compression examined. In terms characteristics strength deformation, behaviors simulated showed good agreement observations in laboratory-scale experiments rock.
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