Fractal nature of multiple shear bands in severely deformed metallic glass

Fractal nature of multiple shear bands in severely deformed metallic glass
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严重变形金属玻璃中多个剪切带的分形性质

DOI:
10.1063/1.3592249
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发表时间:
2011-05
影响因子:
4
通讯作者:
Sun, B. A.
Sun, B. A.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Wang, W. H.;Sun, B. A.

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我们提出了一个广泛的和复杂的剪切带图案在严重变形的金属玻璃的分形几何分析。结果表明,剪切带具有分形特征,分形维数由剪切带间相互作用产生的应力噪声决定。提出了一个多剪切带空间演化的理论模型,其中集体剪切带的滑动被认为是一个远离热力学平衡的随机过程。
We present an analysis of fractal geometry of extensive and complex shear band patterns in a severely deformed metallic glass. We show that the shear band patterns have fractal characteristics, and the fractal dimensions are determined by the stress noise induced by the interaction between shear bands. A theoretical model of the spatial evolution of multiple shear bands is proposed in which the collective shear bands slide is considered as a stochastic process far from thermodynamic equilibrium.
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