Nature of crack-tip plastic zone in metallic glasses
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- 作者：Y. Chen ; L.H. Dai ; lhdai@lnm.imech.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Metallic glass ; A. Crack tip plasticity ; A. Ductility ; A. Stress intensity factor ; C. Analytic functions
- 刊名：International Journal of Plasticity
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：77
- 期：Complete
- 页码：54-74
- 全文大小：3580 K
文摘
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An analytical solution of the plastic zone ahead of mode I crack tip is derived for MGs.
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Two length scales of the plastic zone are revealed to control failure modes.
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Mode I stress intensity factor and plastic zone size at crack initiation are obtained.
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The internal correlations of fracture pattern with plastic zone are established.
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The ductile-to-brittle transition is ascribed to the shape change of plastic zone.