BCC铸铁不同滑移面裂纹扩展的分子动力学模拟

2008 International Conference on Nanoscience and Nanotechnology Pub Date : 2008-10-07 DOI:10.1109/ICONN.2008.4639288

Yuan Gao, Cheng Lu, A. K. Tieu, Hongtao Zhu

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引用次数: 10

摘要

本文对体中心立方(bcc)单晶裂纹扩展过程进行了分子动力学模拟。研究了不同滑移面({11 10}和{21 11})上的裂纹扩展行为。为了提高仿真的稳定性，提出了一种自适应时间步长算法。结果表明，滑移面对裂纹的扩展速度有显著影响。

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Molecular dynamics simulation of crack propagation on different slip planes of BCC iron

In this paper, molecular dynamic simulations of crack propagation in body centre cubic (bcc) single crystal have been performed. The crack propagation behaviors on two different slip planes ({1 1 0} and {2 1 1}) have been investigated. A self-adaptive time step algorithm has been proposed to increase the stability of the simulations. It has been found that the slip plane significantly affects the propagation speed of the crack.

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2008 International Conference on Nanoscience and Nanotechnology

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