TY - GEN
T1 - Variability of mechanical properties of bimrock
AU - Tien, Y. M.
AU - Lu, Y. C.
AU - Cheng, H. H.
N1 - Publisher Copyright:
Copyright 2015 ARMA, American Rock Mechanics Association.
PY - 2015
Y1 - 2015
N2 - This paper used PFC2D to simulate bimrock mechanical behaviors under uniaxial compressive tests and presents the means and variances of uniaxial compressive strength (UCS), Young's modulus (E), and Poisson's ratios (o) for various volume fractions and strain gauge lengths. The results show that UCS, E, and v increase as Vf increases, and simulated E and ν were consistent with the differential scheme and Hashin-Shtrikman bounds. In quantifying the uncertainty of Young's modulus and Poisson's ratio measurements using a strain gauge, the measurement uncertainties initially increase and then decrease with increasing Vf, when Vf =0.3∼0.4 (0 or 1), Young's modulus and Poisson's ratio reach a maximum (minimum) value. In addition, crack propagation was also observed and discussed in this paper.
AB - This paper used PFC2D to simulate bimrock mechanical behaviors under uniaxial compressive tests and presents the means and variances of uniaxial compressive strength (UCS), Young's modulus (E), and Poisson's ratios (o) for various volume fractions and strain gauge lengths. The results show that UCS, E, and v increase as Vf increases, and simulated E and ν were consistent with the differential scheme and Hashin-Shtrikman bounds. In quantifying the uncertainty of Young's modulus and Poisson's ratio measurements using a strain gauge, the measurement uncertainties initially increase and then decrease with increasing Vf, when Vf =0.3∼0.4 (0 or 1), Young's modulus and Poisson's ratio reach a maximum (minimum) value. In addition, crack propagation was also observed and discussed in this paper.
UR - http://www.scopus.com/inward/record.url?scp=84964969323&partnerID=8YFLogxK
M3 - 會議論文篇章
AN - SCOPUS:84964969323
T3 - 49th US Rock Mechanics / Geomechanics Symposium 2015
SP - 1125
EP - 1132
BT - 49th US Rock Mechanics / Geomechanics Symposium 2015
PB - American Rock Mechanics Association (ARMA)
T2 - 49th US Rock Mechanics / Geomechanics Symposium
Y2 - 29 June 2015 through 1 July 2015
ER -