Analysis for Initiative Sub-Crack of Ellipse Fracture

Dun Fu Zhang; Wei Shen Zhu; Shu Cai Li

doi:10.4028/www.scientific.net/KEM.306-308.1485

Paper Titles

Preliminary Study on the Progressive Failure of a Layered Rock Slope under Explosions
p.1461

Numerical Analysis of 3-D FLAC on Supporting Effects of Underground Caverns Surrounding Rockmass of Xiao Lang Di Key Water Control Project
p.1467

3-D FLAC Numerical Analysis of Rheological Character and Stability of Underground Caverns Surrounding Rock Mass of Xiao Langdi Key Water Control Project
p.1473

Study on Basic Mechanical Behaviors of Rocks at Low Temperatures
p.1479

Analysis for Initiative Sub-Crack of Ellipse Fracture
p.1485

3-D Network Simulation of Rock Joints and Permeability Tensor Analysis
p.1491

On the Active Failure Surface in the Backfilled Clay behind Rigid Retaining Wall in Slope Engineering
p.1497

Effect of Shear Stress and Displacement on the Hydraulic Properties of a Marble Fracture with Sand
p.1503

The Application of Hydraulic Fracturing in Storage Projects of Liquefied Petroleum Gas
p.1509

HomeKey Engineering MaterialsKey Engineering Materials Vols. 306-308Analysis for Initiative Sub-Crack of Ellipse...

Analysis for Initiative Sub-Crack of Ellipse Fracture

Abstract:

By use of complex variable theory, formulae for tangential stress on ellipse edge are derived. Sub-crack point, opening angle and maximal tangential stress on ellipse edge are studied under uniaxial compression, biaxial compression, or uniaxial compression and crack water pressure separately. Based on the maximal tension stress criterion, formulas of maximal tangential stress and critical load are presented. The results show that sub-crack point, opening angle, maximal tangential stress and critical load are varied with different aspect ratio and different inclined angle. Meanwhile, the most dangerous inclined angle is obtained.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 306-308)

Pages:

1485-1490

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.306-308.1485

Citation:

Cite this paper

Online since:

March 2006

Authors:

Dun Fu Zhang, Wei Shen Zhu, Shu Cai Li

Keywords:

Confining Pressure, Crack Water Pressure, Critical Load, Ellipse Fracture, Opening Angle, Sub-Crack Point

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Hao Jian, Shucai Li and Weishen Zhu, etc. CT analyses of brittle materials under hydraulic pressure and uniaxial compression: Rock and Soil Mechanics Vol. 23(5)(2002), P. 587-591(in Chinese).

Google Scholar

[2] Weizhong Chen, Shucai Li and Weishen Zhu, etc. Experimental and numerical research on crack propagation in rock under compression: J. Rock Mech. Engng. Vol. 22(1)(2003), P. 18- 23 (in Chinese).

Google Scholar

[3] Kaizhu Huang, Peng Lin and Chunan Tang, etc. Mechanisms of crack coalescence of pre exist- ing flaws under biaxial compression: J. Rock Mech. Engng. Vol. 21(6)(2002), P. 808-816(in Chinese).

Google Scholar

[4] Timoshenko SP, Goodier JN. Theory of Elasticity: 3 rd. ed. New York, McGraw Hill, (1976).

Google Scholar

[5] Shuangzeng Yin. Rupture·damage theory and its applications: Beijing, Qhing-hua Univercity Publisher, 1992, 12(in Chinese).

Google Scholar

[6] G. Y. Wang, Z. Q. Sun, J. C. Xu. Rock fracture process zone and its influence on mode II fracture behavior: Trans Nonferrous Met Soc China: Vol. 6(1)( 1996), P. 123-127.

Google Scholar

[7] Shaohua Guo, Zhongqi Sun. Fracture law of an elliptical brittle crack under compressive load- ing: J. Zhongnan Univ. industry Vol. 32(5)(2001), P. 457-460(in Chinese).

Google Scholar

[8] Haibo Li, Jian Zhao and Junru Li, etc. Study on constitutive relation of crack under dynamic compression based on energy balance during crack growth: J. Rock Mech. Engng. Vol. 22(10) (2003), P. 1683-1688(in Chinese).

Google Scholar

[9] Shaohua Guo, Zhongqi Sun and Xiaoqing Xie. Flow field simulation of cracking path for rock- type materials under compressive loading: J. Rock Mech. Engng. Vol. 22(2) (2003), P. 212-216 (in Chinese).

Google Scholar

[10] Faxing Che, Liyun Li and DaanLiu. Fracture experiments and finite element analysis for multi- cracks body of rock-like material: J. Rock Mech. Engng. Vol. 19(3) (2000), P. 295-298 (in Chinese).

Google Scholar