Numerical investigation of coal fracture and dust particle formation in mining

I. Yu Smolin, P. V. Makarov, Yu P. Stefanov, P. V. Kuznetsov, A. A. Trubitsyn, N. V. Trubitsyna, S. P. Voroshilov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The approach of physical mesomechanics is applied to the problem of coal fracture. The coal is regarded as a natural composite with a hierarchical inner structure. The applied problem of dust particle formation during cutting is considered. Macro-, meso-, and microscales are included into the study. First, the features of the stress-strain state at cutting are determined at the macroscale in numerical calculation. The outcome is used for numerical modeling of fracture and dust particle formation at the mesolevel. The microlevel is presented by evolution of microdamadges. The mesoscale simulations receive primary emphasis. A typical mesovolume containing 6 types of coal ingredients and pores of different sizes was taken for calculations. Computer simulations of mechanical behavior up to the failure of the mesovolume under different types of loading have been carried out. At the macroscale use of the elastic plastic model with taking into account damage accumulation and dilatancy effects as well as explicit crack opening by grid node splitting technique is made. At the mesoscale elastic plastic model with a combined fracture criterion is adopted. It has been shown that such an approach makes it possible to estimate quantitative parameters of dust particle formation of 2-100 μm size during the coal fracture.

Original languageEnglish
Title of host publication11th International Conference on Fracture 2005, ICF11
Pages4434-4438
Number of pages5
Volume6
Publication statusPublished - 2005
Event11th International Conference on Fracture 2005, ICF11 - Turin, Italy
Duration: 20 Mar 200525 Mar 2005

Other

Other11th International Conference on Fracture 2005, ICF11
CountryItaly
CityTurin
Period20.3.0525.3.05

Fingerprint

Particles (particulate matter)
Dust
Coal
coal
dust
plastic
Plastics
dilatancy
computer simulation
Macros
crack
Cracks
damage
particle
Computer simulation
Composite materials
modeling
simulation
cutting (process)
calculation

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Smolin, I. Y., Makarov, P. V., Stefanov, Y. P., Kuznetsov, P. V., Trubitsyn, A. A., Trubitsyna, N. V., & Voroshilov, S. P. (2005). Numerical investigation of coal fracture and dust particle formation in mining. In 11th International Conference on Fracture 2005, ICF11 (Vol. 6, pp. 4434-4438)

Numerical investigation of coal fracture and dust particle formation in mining. / Smolin, I. Yu; Makarov, P. V.; Stefanov, Yu P.; Kuznetsov, P. V.; Trubitsyn, A. A.; Trubitsyna, N. V.; Voroshilov, S. P.

11th International Conference on Fracture 2005, ICF11. Vol. 6 2005. p. 4434-4438.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Smolin, IY, Makarov, PV, Stefanov, YP, Kuznetsov, PV, Trubitsyn, AA, Trubitsyna, NV & Voroshilov, SP 2005, Numerical investigation of coal fracture and dust particle formation in mining. in 11th International Conference on Fracture 2005, ICF11. vol. 6, pp. 4434-4438, 11th International Conference on Fracture 2005, ICF11, Turin, Italy, 20.3.05.
Smolin IY, Makarov PV, Stefanov YP, Kuznetsov PV, Trubitsyn AA, Trubitsyna NV et al. Numerical investigation of coal fracture and dust particle formation in mining. In 11th International Conference on Fracture 2005, ICF11. Vol. 6. 2005. p. 4434-4438
Smolin, I. Yu ; Makarov, P. V. ; Stefanov, Yu P. ; Kuznetsov, P. V. ; Trubitsyn, A. A. ; Trubitsyna, N. V. ; Voroshilov, S. P. / Numerical investigation of coal fracture and dust particle formation in mining. 11th International Conference on Fracture 2005, ICF11. Vol. 6 2005. pp. 4434-4438
@inproceedings{c981e12f56dd4de0aecbd8263ca1d527,
title = "Numerical investigation of coal fracture and dust particle formation in mining",
abstract = "The approach of physical mesomechanics is applied to the problem of coal fracture. The coal is regarded as a natural composite with a hierarchical inner structure. The applied problem of dust particle formation during cutting is considered. Macro-, meso-, and microscales are included into the study. First, the features of the stress-strain state at cutting are determined at the macroscale in numerical calculation. The outcome is used for numerical modeling of fracture and dust particle formation at the mesolevel. The microlevel is presented by evolution of microdamadges. The mesoscale simulations receive primary emphasis. A typical mesovolume containing 6 types of coal ingredients and pores of different sizes was taken for calculations. Computer simulations of mechanical behavior up to the failure of the mesovolume under different types of loading have been carried out. At the macroscale use of the elastic plastic model with taking into account damage accumulation and dilatancy effects as well as explicit crack opening by grid node splitting technique is made. At the mesoscale elastic plastic model with a combined fracture criterion is adopted. It has been shown that such an approach makes it possible to estimate quantitative parameters of dust particle formation of 2-100 μm size during the coal fracture.",
author = "Smolin, {I. Yu} and Makarov, {P. V.} and Stefanov, {Yu P.} and Kuznetsov, {P. V.} and Trubitsyn, {A. A.} and Trubitsyna, {N. V.} and Voroshilov, {S. P.}",
year = "2005",
language = "English",
isbn = "9781617820632",
volume = "6",
pages = "4434--4438",
booktitle = "11th International Conference on Fracture 2005, ICF11",

}

TY - GEN

T1 - Numerical investigation of coal fracture and dust particle formation in mining

AU - Smolin, I. Yu

AU - Makarov, P. V.

AU - Stefanov, Yu P.

AU - Kuznetsov, P. V.

AU - Trubitsyn, A. A.

AU - Trubitsyna, N. V.

AU - Voroshilov, S. P.

PY - 2005

Y1 - 2005

N2 - The approach of physical mesomechanics is applied to the problem of coal fracture. The coal is regarded as a natural composite with a hierarchical inner structure. The applied problem of dust particle formation during cutting is considered. Macro-, meso-, and microscales are included into the study. First, the features of the stress-strain state at cutting are determined at the macroscale in numerical calculation. The outcome is used for numerical modeling of fracture and dust particle formation at the mesolevel. The microlevel is presented by evolution of microdamadges. The mesoscale simulations receive primary emphasis. A typical mesovolume containing 6 types of coal ingredients and pores of different sizes was taken for calculations. Computer simulations of mechanical behavior up to the failure of the mesovolume under different types of loading have been carried out. At the macroscale use of the elastic plastic model with taking into account damage accumulation and dilatancy effects as well as explicit crack opening by grid node splitting technique is made. At the mesoscale elastic plastic model with a combined fracture criterion is adopted. It has been shown that such an approach makes it possible to estimate quantitative parameters of dust particle formation of 2-100 μm size during the coal fracture.

AB - The approach of physical mesomechanics is applied to the problem of coal fracture. The coal is regarded as a natural composite with a hierarchical inner structure. The applied problem of dust particle formation during cutting is considered. Macro-, meso-, and microscales are included into the study. First, the features of the stress-strain state at cutting are determined at the macroscale in numerical calculation. The outcome is used for numerical modeling of fracture and dust particle formation at the mesolevel. The microlevel is presented by evolution of microdamadges. The mesoscale simulations receive primary emphasis. A typical mesovolume containing 6 types of coal ingredients and pores of different sizes was taken for calculations. Computer simulations of mechanical behavior up to the failure of the mesovolume under different types of loading have been carried out. At the macroscale use of the elastic plastic model with taking into account damage accumulation and dilatancy effects as well as explicit crack opening by grid node splitting technique is made. At the mesoscale elastic plastic model with a combined fracture criterion is adopted. It has been shown that such an approach makes it possible to estimate quantitative parameters of dust particle formation of 2-100 μm size during the coal fracture.

UR - http://www.scopus.com/inward/record.url?scp=84869835611&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84869835611&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84869835611

SN - 9781617820632

VL - 6

SP - 4434

EP - 4438

BT - 11th International Conference on Fracture 2005, ICF11

ER -