TY - JOUR
T1 - An investigation of non-straight fissures cracking under uniaxial compression
AU - Ma, G. W.
AU - Dong, Q. Q.
AU - Fan, L. F.
AU - Gao, J. W.
PY - 2018/3/15
Y1 - 2018/3/15
N2 - Prediction of cracking is greatly important when evaluating the stability and safety of underground engineering projects. In this paper, 3D-printed samples with a single non-straight fissure are uniaxially compressed, and the effects of the inclination angle and effective curvature on the cracking are observed. A simplified approach is proposed for the determination of tip cracking and non-tip cracking of the non-straight fissure. The accuracy of the prediction is validated by the uniaxial tests. The results show that the cracking behavior of non-straight fissures is different from that of straight fissures with respect to the occurrence of non-tip cracking. Moreover, cracking is significantly influenced by the geometric parameters of the non-straight fissure. In addition, the proposed approach can be utilized to predict the cracking of non-straight fissures with acceptable accuracy.
AB - Prediction of cracking is greatly important when evaluating the stability and safety of underground engineering projects. In this paper, 3D-printed samples with a single non-straight fissure are uniaxially compressed, and the effects of the inclination angle and effective curvature on the cracking are observed. A simplified approach is proposed for the determination of tip cracking and non-tip cracking of the non-straight fissure. The accuracy of the prediction is validated by the uniaxial tests. The results show that the cracking behavior of non-straight fissures is different from that of straight fissures with respect to the occurrence of non-tip cracking. Moreover, cracking is significantly influenced by the geometric parameters of the non-straight fissure. In addition, the proposed approach can be utilized to predict the cracking of non-straight fissures with acceptable accuracy.
KW - 3D-printing technology
KW - Non-straight fissure
KW - Non-tip cracking
KW - Uniaxial compression
UR - http://www.scopus.com/inward/record.url?scp=85039944586&partnerID=8YFLogxK
U2 - 10.1016/j.engfracmech.2017.12.017
DO - 10.1016/j.engfracmech.2017.12.017
M3 - Article
AN - SCOPUS:85039944586
SN - 0013-7944
VL - 191
SP - 300
EP - 310
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
ER -