Discrete Element Method for Mechanics Properties and Size Effect Analysis of Granite

Article Preview

Abstract:

The mechanics models formed by packed circular discrete elements and randomly distributed in a specified region were used to investigate the mechanics properties of granite, and some different sizes of discrete element models were carried out to study the size effect of mechanics properties. The simulation results suggest that there is no obvious size effect for Poisson’s ratio, compressive strength and Young’s modulus. However, the value of bending strength decreases with the increasing of the model size.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

37-40

Citation:

Online since:

February 2013

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Bažant Z P, Chen E P. Scaling of structure failure [J]. Applied Mechanics Reviews, 1977, 50(10): 593-627.

Google Scholar

[2] Han G P, Liu K. Mechanical properties and size effects of single crystal silicon [J]. Chinese Journal of Mechanical Engineering, 2006, 19(2): 290-293.

DOI: 10.3901/cjme.2006.02.290

Google Scholar

[3] Tan Y Q, Yang D M, S Y. study of polycrystalline Al2O3 machining cracks using discrete element method [J]. International Journal of Machine Tools & Manufacture, 2008, 48(9): 975-982.

DOI: 10.1016/j.ijmachtools.2008.01.010

Google Scholar

[4] Fu J T, Akiniwa Y. Molecular dynamics analysis for fracture behavior of single crystal silicon thin film with micronotch [J]. Modeling and Simulation in Materials Science and Engineering, 2006, 14(2): 73-83.

Google Scholar

[5] PFC2D User's Manuals [M]. Lakewood, Colorado, USA: Itasca Consulting Group Inc., (2002).

Google Scholar

[6] Sundararajan S. fracture development of AFM-based techniques to measure mechanical properties of nanoscale structure [J]. Sensor and Actuators A: Physical, 2002, 101(3): 338-351.

DOI: 10.1016/s0924-4247(02)00268-6

Google Scholar

[7] Koyama T. effects of model scale and particle size on micro-mechanical properties and failure processes of rocks-a particle mechanics approach [J]. Engineering Analysis with Boundary Element, 2007, 31 (5): 458-472.

DOI: 10.1016/j.enganabound.2006.11.009

Google Scholar