Strain Avalanches in Microsized Single Crystals: A Theoretical Study of the Relation between the Avalanche Size and Duration
Xu Zhang1,2, Zhi Wang1, Qian Li1, Fu-Lin Shang2**
1National Center for International Joint Research of Micro-nano Moulding Technology, School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001 2State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049
Abstract：Single crystal micropillars 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 avalanche 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 aspects of scaling behaviors from micro-compression tests.
. [J]. 中国物理快报, 2016, 33(09): 96401-096401.
Xu Zhang, Zhi Wang, Qian Li, Fu-Lin Shang. Strain Avalanches in Microsized Single Crystals: A Theoretical Study of the Relation between the Avalanche Size and Duration. Chin. Phys. Lett., 2016, 33(09): 96401-096401.
2016, Vol. 33 
