The distribution of local residual stresses (threshold to instability) that controls the statistical properties of plastic flow in athermal amorphous solids is examined with an atomistic simulation technique. For quiescent configurations, the distribution has a pseudogap (power-law) form with an exponent that agrees well with global yielding statistics. As soon as deformation sets in, the pseudogap region gives way to a system size dependent plateau at small residual stresses that can be understood from the statistics of local residual stress differences between plastic events. Results further suggest that the local yield stress in amorphous solids changes even if the given region does not participate in plastic activity.

中文翻译：

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来自原子模拟的非晶态固体中的残余应力分布。

使用原子模拟技术检查了控制非热无定形固体中塑性流动统计特性的局部残余应力（阈值至不稳定性）的分布。对于静态配置，分布具有伪间隙（幂定律）形式，其指数与全局收益率统计数据非常吻合。一旦变形开始，假间隙区域就在较小的残余应力下由系统尺寸所决定的平稳期所取代，这可以从塑性事件之间的局部残余应力差异的统计数据中了解。结果进一步表明，即使给定区域不参与塑性活动，非晶态固体中的局部屈服应力也会发生变化。