TY - GEN
T1 - The failure mechanism of a concrete cube
AU - Yu, C. C.
AU - Tung, S. H.
AU - Weng, Meng-Chia
PY - 2008/12/1
Y1 - 2008/12/1
N2 - Uni-axial compression test has been the general way to evaluate the strength of bulk materials, especially brittle materials, for decades. In the field of concrete or rock mechanics, compression strength is one of the most significant engineering characteristics. By observing the compression test of a cubic specimen, the most severe compression area in material (the inner central area), however, does not match the damage pattern (side wedge peeling). In the present study, the Discrete Element Method (so-called DEM or Particle Element Method) is employed to analyse a brittle block. One of the important advantages of this method is that material damage due to bonding and friction failure can be better described. In this paper, the results of elasticity, compression strength, and the crack profile of the bulk specimen are carried out using the two-dimensional discrete element method. Upon matching the numerical results to those of the lab test, one can determine the internal material parameters such as bonding strength, the frictional angle, and equivalent stiffness between particles in micro scale.
AB - Uni-axial compression test has been the general way to evaluate the strength of bulk materials, especially brittle materials, for decades. In the field of concrete or rock mechanics, compression strength is one of the most significant engineering characteristics. By observing the compression test of a cubic specimen, the most severe compression area in material (the inner central area), however, does not match the damage pattern (side wedge peeling). In the present study, the Discrete Element Method (so-called DEM or Particle Element Method) is employed to analyse a brittle block. One of the important advantages of this method is that material damage due to bonding and friction failure can be better described. In this paper, the results of elasticity, compression strength, and the crack profile of the bulk specimen are carried out using the two-dimensional discrete element method. Upon matching the numerical results to those of the lab test, one can determine the internal material parameters such as bonding strength, the frictional angle, and equivalent stiffness between particles in micro scale.
KW - Discrete element method
KW - FEM
KW - Mohr-Coulomb criterion
KW - Uni-axial compression test
UR - http://www.scopus.com/inward/record.url?scp=84858386958&partnerID=8YFLogxK
U2 - 10.4203/ccp.89.131
DO - 10.4203/ccp.89.131
M3 - Conference contribution
AN - SCOPUS:84858386958
SN - 9781905088249
T3 - Proceedings of the 6th International Conference on Engineering Computational Technology
BT - Proceedings of the 6th International Conference on Engineering Computational Technology
Y2 - 2 September 2008 through 5 September 2008
ER -