THREE-DIMENSIONAL SIMULATION OF THE CRACKED SAMPLES FRACTURING

Details

Parent Category: Geo-Technical Mechanics, 2014

Category: Geo-Technical Mechanics, 2014, Issue 114

UDC 620.192.7.001.24:539.4

Author

I.E. Shipovskiy, Ph.D. (Tech.),

(Principal Researcher of

«State Oceanarium» of Ukraine)

Abstract.

Occurrence of complex fracture processes and formation of macroscopic cracks are investigated in a fragile material. A 3D behaviour of samples at a monaxonic compression is computed with the help of a method of Smoothed Particle Hydrodynamics (SPH) in order to determine an optimal method for simulating processes of the loaded sample fracturing with maximal correspondence with the fracture observed during experiments. It is for the first time when this method is used for the task under consideration. The obtained results were compared with data of experiments, and the comparison proved good potential of the SPH - method for adequate presentation of fractures accumulated in the material. The 3D method allows to trace essential spatial features of the fracturing.

Keywords:

 fracture, sample with a crack, SPH method of simulation

References:

1. Kostandov, Yu. A. and Medvedev V.S. (2012), “Dependence of durability of fragile bodies at their compression from a pin friction and orientation of initial crack”, Geo-Technical Mechanics, no. 97, pp. 231-240.

2. Kostandov, Yu. A., Makarov P. V., Eremin M. O., Shipovskii I.E. and Smolin I. Yu. (2013), “Fracture of Compressed Brittle Bodies with a Crack”, International Applied Mechanics, vol.49, no 1, pp. 96-103.

3. Kostandov, Yu. A., Makarov P. V., Eremin M. O., Shipovskii I.E. and Smolin I. Yu. (2012),  “Simulation for failure of fragile and quasi-fragile bodies and geo-environments”, Fizicheskaya Mezomekhanika, [Phizical Mezomechanics], vol. 15, no 3, pp..35-44.

4. Libersky, L.D. and  Randles, P.W. (1996) “Smootred Particle Hydrodynamics: Some recent implements and applications”, Comput. Methods Appl. Mech. Engrg, vol.139, p.p. 375-408.

5. Graya, J.P. and Monaghan J.J. (2004) “Numerical modelling of stress fields and fracture around magma chambers” Journal of Volcanology and Geothermal Research, vol. 135, pp. 259–283.

About the author

Shipovskiy Ivan Evgenyevich, Candidate of Technical Sciences (Ph.D), Principal Researcher of  «State Oceanarium» of Ukraine, Sevastopol, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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