Paper Title:
Experimental and Theoretical Study of Fracture Paths in Brittle Cracked Materials Subjected to Pure Mode II Loading
  Abstract

Crack growth path was investigated experimentally, numerically and theoretically using two test specimens subjected to pure mode II loading. The specimens were (a) the center cracked circular disc (CCCD) specimen subjected to diametral compression often called the Brazilian disc and (b) the diagonally loaded square plate (DLSP) specimen containing inclined center crack and subjected to pin loading. A few CCCD and DLSP specimens made of two brittle materials (i.e. marble rock and PMMA) were tested under pure mode II conditions. It was observed that the fracture initiation directions and the fracture paths for the tested specimens differed significantly and grew in two different trajectories. However, it was shown that the experimentally observed fracture paths for both specimens can be predicted theoretically very well by using the incremental crack growth method. Several finite element analyses were performed to simulate the whole fracture trajectories of the tested CCCD and DLSP specimens. At each increment, the direction of fracture initiation for the tip of growing crack was determined using the fracture parameters (i.e. stress intensity factors and T-stress) based on the modified maximum tangential stress (MMTS) criterion. The main difference in the fracture trajectory was found to be related to the magnitude and sign of the fracture parameters (which depend strongly on the specimen geometry and loading configuration) and also the type of tensile or compressive loading in the CCCD and DLSP samples.

  Info
Periodical
Edited by
R. L. Burguete, M. Lucas, E. A. Patterson, S. Quinn
Pages
159-164
DOI
10.4028/www.scientific.net/AMM.70.159
Citation
M.R.M. Aliha, M. Rezaei, "Experimental and Theoretical Study of Fracture Paths in Brittle Cracked Materials Subjected to Pure Mode II Loading", Applied Mechanics and Materials, Vol. 70, pp. 159-164, 2011
Online since
August 2011
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: Hui Fang Li, Yuan Hong, Cai Fu Qian
Chapter 9: Metals and Alloys in Industrial Applications
Abstract:In this paper, I+II mixed mode notch-crack fatigue propagation in titanium alloy steel TA2 was tested with the emphasis on the crack mode...
1008
Authors: Jia Shen Tian, Cheng Zhao
Chapter 8: Materials and Related Technologies in Construction
Abstract:Numerical investigations on failure process of rock-like materials with a single flaw were carried out under uniaxial compression based on...
683