A Study of Crack Propagation in BCC Iron by Molecular Dynamics Method

Abstract:

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In this paper, molecular dynamics method has been employed to model mode I crack propagation in body center cubic (BCC) single iron crystal. To maximize the simulation efficiency the parallel computing was performed. Six cases with different lattice orientations have been simulated to investigate the crack propagation behaviors at atomic level. The strain distributions have been calculated to indicate the density of dislocation. It has been found that the lattice orientation significantly affects the propagation behaviors. The crack in BCC iron propagates more readily along the direction <111> on the plane {1-10}.

Info:

Periodical:

Key Engineering Materials (Volumes 385-387)

Edited by:

H.S. Lee, I.S. Yoon and M.H. Aliabadi

Pages:

453-456

DOI:

10.4028/www.scientific.net/KEM.385-387.453

Citation:

Y. Gao et al., "A Study of Crack Propagation in BCC Iron by Molecular Dynamics Method", Key Engineering Materials, Vols. 385-387, pp. 453-456, 2008

Online since:

July 2008

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Price:

$35.00

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