An investigation of non-straight fissures cracking under uniaxial compression

G. W. Ma, Q. Q. Dong, L. F. Fan, J. W. Gao

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)300-310
JournalEngineering Fracture Mechanics
Volume191
DOIs
Publication statusPublished - 15 Mar 2018

Cite this

Ma, G. W. ; Dong, Q. Q. ; Fan, L. F. ; Gao, J. W. / An investigation of non-straight fissures cracking under uniaxial compression. In: Engineering Fracture Mechanics. 2018 ; Vol. 191. pp. 300-310.
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An investigation of non-straight fissures cracking under uniaxial compression. / Ma, G. W.; Dong, Q. Q.; Fan, L. F.; Gao, J. W.

In: Engineering Fracture Mechanics, Vol. 191, 15.03.2018, p. 300-310.

Research output: Contribution to journalArticle

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

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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.

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