Elastic-Viscoplastic Field at the Mixed-Mode Crack-Tip under Compression and Shear

Abstract:

Article Preview

In the present paper, the mechanical model of dynamic propagation interface crack of the compression-shear mixed mode is proposed by using the elastic-viscoplastic constitutive model. Then the governing equations of propagation crack interface at crack tip are given. The numerical analysis is accomplished for the interface crack of compression-shear mixed mode by introducing a displacement potential function and some boundary conditions at interface crack tip. The distributed regularities of stress-strain fields of interface crack tip are discussed with several special parameters. The numerical results show that the viscosity effect is a main factor of interface propagating at crack-tip field, and the interface crack-tip is a viscoplastic field that is governed by viscosity coefficient、Mach number and singularity exponent.

Info:

Periodical:

Key Engineering Materials (Volumes 488-489)

Edited by:

Z. Tonković and M.H. Aliabadi

Pages:

452-455

DOI:

10.4028/www.scientific.net/KEM.488-489.452

Citation:

W. Y. Liang et al., "Elastic-Viscoplastic Field at the Mixed-Mode Crack-Tip under Compression and Shear", Key Engineering Materials, Vols. 488-489, pp. 452-455, 2012

Online since:

September 2011

Export:

Price:

$35.00

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

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