Strain Avalanches in Microsized Single Crystals:A Theoretical Study of the Relation between the Avalanche Size and Duration

作     者：张旭 王志 李倩 尚福林 

作者机构：National Center for International Joint Research of Micro-nano Moulding TechnologySchool of Mechanics and Engineering ScienceZhengzhou University State Key Laboratory for Strength and Vibration of Mechanical StructuresSchool of AerospaceXi'an Jiaotong University 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2016年第33卷第9期

页      面：100-103页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No 51404212 the China Postdoctoral Science Foundation under Grant No 2015M572118 the Basic and Advanced Technology Research Project of Henan Province under Grant No 52110599 

主　　题：of that in is 

摘      要：Single crystal mieropillars deform via a sequence of discrete strain avalanches, observed as displacement jumps or stress drops. Here we develop a simple crystal plasticity model to provide a quantitative expression of the relation between avalanehe duration and avalanche size. It is found that the avalanche durations in scale with the averaged avalanche sizes only hold for those larger magnitudes. We show that the theoretical predictions are capable of capturing the essential aspeets of scaling behaviors from micro-compression tests.