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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 1 - 28 (28page)
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초록· 키워드
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We generalize our view of a bonded-particle model (BPM) to consist of a base material (that is a packed assembly of rigid grains joined by deformable and breakable cement at grain–grain contacts) to which larger-scale joints can be added and whose mechanical behavior is simulated by the distinct-element method using the two- and three-dimensional discontinuum programs PFC2D and PFC3D. The micromechanical processes that control brittle fracture, and thus, should inform any micromechanical theory or model, are summarized. The rich variety of microstructural models that can be produced by the bonded-particle modeling methodology are described and classified with respect to their microstructural and larger-scale features. These models provide a wide range of rock behaviors that encompass both compact and porous rock at both an intact and rock-mass scale, and examples are provided of how BPMs are being used to model rock at these scales. The examples include an intact anisotropic material that may swell and contract in response to changes in saturation, the behavior of two alternative BPMs that can match both the uniaxial and tensile strengths of compact rock and the embedding of an intact BPM within a larger continuum model to study fracturing around a gold-mine stope in quartzite.
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참고문헌 (70)
참고문헌 신청
Asadi, M. S. / 2012 / A bonded particle model simulation of shear strength and asperity degradation for rough rock fractures / Rock Mechanics and Rock Engineering
Bahrani, N. / 2012 / Simulation of brazilian test using PFC2D grain-based model / RockEng12 – rock engineering for natural resources. Proceedings of 21st Canadian rock mechanics symposium :485~493
Bahrani, N. / 2011 / Evaluation of PFC2D grain-based model for simulation of confinement-dependent rock strength degradation and failure processes / Proceedings of 45th U.S. rock mechanics/geomechanics symposium
Bandini, A. / 2012 / Effects of intra-crystalline microcracks on the mechanical behavior of a marble under indentation / International Journal of Rock Mechanics and Mining Sciences 54:47~55
Cho, N. / 2007 / A clumped particle model for rock / International Journal of Rock Mechanics and Mining Sciences 44:997~1010
Bahrani, N. / 2012 / Simulation of brazilian test using PFC2D grain-based model / RockEng12 – rock engineering for natural resources. Proceedings of 21st Canadian rock mechanics symposium :485~493
Bahrani, N. / 2011 / Evaluation of PFC2D grain-based model for simulation of confinement-dependent rock strength degradation and failure processes / Proceedings of 45th U.S. rock mechanics/geomechanics symposium
Bandini, A. / 2012 / Effects of intra-crystalline microcracks on the mechanical behavior of a marble under indentation / International Journal of Rock Mechanics and Mining Sciences 54:47~55
Cho, N. / 2007 / A clumped particle model for rock / International Journal of Rock Mechanics and Mining Sciences 44:997~1010
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