Analysis on Crack Propagation Mechanism of Single Crystal Copper by FEAt Method

Abstract:

By FEAt method, the tensile processes of single crystal copper with the type I crack at temperature of 293K were simulated, and the effect of different initial crack lengths to crack propagation mechanism was analyzed. The results indicate that the different initial crack lengths have significant effect on crack propagation mechanism. With the increase of crack length, the critical stress of crack propagation was significantly reduced, the dislocation walls were easy to appear, and mesh staggered of the crack branch along the cleavage plane was more pronounced.

• Periodical: Advanced Materials Research (Volumes 581-582)
• Pages: 827-830
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.581-582.827
• Online since: October 2012
• Authors: Ge Li, Qing Long Zhang, Ming Chen, Lin Yong Zhou
• Keywords: Crack Propagation Mechanism, FEAt Method, Single Crystal Copper

References

[1] Gu and T. Yuan: Multiscale Modeling & Simulation, Vol. 5 (2006) No. 4, p.1128.

[2] F. Cleri, S. Yip and D. Wolf: Phys Rev Lett, Vol. 79 (1997) No. 7, p.1309.

[3] E. Kaxiras and M.S. Duesbery: Phys Rev Lett，Vol. 70 (1993) No. 24, p.3752.

[4] Y.F. Guo and C.Y. Wang: Journal of Iron, Vol. 14 (2002) No. 3, p.60. (in Chinese).

[5] X.F. Wang, G.M. Zhou and C.W. Zhou: Journal of Nanjing University of Aeronautics & Astronautics, Vol. 37 (2005) No. 6, p.730. (in Chinese).

[6] J.L. Zuo, D.S. Feng and N. Li: Chinese Journal of Rare Metals, Vol. 34 (2010) No. 5, p.726. (in Chinese).