Study on Anisotropic Mechanical Behavior at near Pre-Crack for AZ31B Sheet under Biaxial Stress

Abstract:

Article Preview

In this study, a biaxial tensile test of cruciform specimens containing centre notch was conducted in order to clarify the deformation behavior near the crack tip at the early stages of crack initiation when objected to a biaxial stress state. Results show that the hardness and stress value within the deformed zone increased with increase in the loading ratio. Observation of the microstructure reveals that the deformation is dominated by basal slip under equal biaxial tensile loading. The asymmetrical biaxial tensile loading generates deformation twins near the crack tip. These results indicate that existing deformation twins contribute to higher hardness, and there is obvious anisotropism in the vicinity of crack tip under asymmetrical biaxial tensile loading.

Info:

Periodical:

Edited by:

Shijie Zhu, Baorong Ni and Dongying Ju

Pages:

196-199

DOI:

10.4028/www.scientific.net/MSF.750.196

Citation:

J. G. Wang et al., "Study on Anisotropic Mechanical Behavior at near Pre-Crack for AZ31B Sheet under Biaxial Stress", Materials Science Forum, Vol. 750, pp. 196-199, 2013

Online since:

March 2013

Export:

Price:

$35.00

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

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