Paper Title:
Research on the Propagation Pattern of 3-D Initial Crack in Rock-Like Material under Uniaxial Tension
  Abstract

Experiments and numerical simulations were conducted to investigate the propagation patterns of pre-existing 3-D elliptical crack in rock-like material under uniaxial tension. Research results demonstrated that as the load was increased, the wrapping wing cracks initiated near the front of long axis of crack, with the lateral growth of initial crack close to the front of short axis. A distortion surface formed from the growth of initial crack leaded to the macro fracture of samples. The distribution laws of mixed-mode stress intensity factor (SIF) along crack contour were derived with FRANC3D, and propagation process of 3-D crack under tension was simulated. It was concluded that propagation patterns of 3-D crack under tension were quite different from compressive cases, mainly in aspects of growth orientation and velocity.

  Info
Periodical
Key Engineering Materials (Volumes 452-453)
Edited by
A. Saimoto and M.H. Aliabadi
Pages
817-820
DOI
10.4028/www.scientific.net/KEM.452-453.817
Citation
L. Yang, Y. Jiang, S. C. Li, B. Li, "Research on the Propagation Pattern of 3-D Initial Crack in Rock-Like Material under Uniaxial Tension", Key Engineering Materials, Vols. 452-453, pp. 817-820, 2011
Online since
November 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Li Yun Li, F.X. Che, D.A. Liu
Abstract:Multi-crack problems are deeply involved in rock-like material and rock engineering. In order to study the influences of lateral stress and...
1523
Authors: R.H.C. Wong, Y.S.H. Guo, K.T. Chau, Wei Shen Zhu, Shu Cai Li
Abstract:This paper presents the crack growth mechanism from a 3-D surface flaw on gabbro specimens using strain measurement and acoustic emission...
2357
Authors: M.R.M. Aliha, Mahdi Rezaei
Abstract:Crack growth path was investigated experimentally, numerically and theoretically using two test specimens subjected to pure mode II loading....
159
Authors: Jun Ru Yang, Gong Ling Chen, Li Li Zhang, Jing Sun
VI. Analytical and Numerical Methods for Materials Processing
Abstract:Based on the theoretical study on the tip stress intensity factor (SIF) of the crack normal to and dwelling on the interface, using the...
525