Gifu University School of Medicine, Yanagido 1-1, Gifu, Gifu 501-1194, Japan and United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido 1-1, Gifu, Gifu 501-1194, Japan.
Tohoku University Advanced Institute for Materials Research, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577 Japan.
Phys Rev E. 2017 Jan;95(1-1):012504. doi: 10.1103/PhysRevE.95.012504. Epub 2017 Jan 13.
We apply a persistent homology analysis to investigate the behavior of nanovoids during the crazing process of glassy polymers. We carry out a coarse-grained molecular dynamics simulation of the uniaxial deformation of an amorphous polymer and analyze the results with persistent homology. Persistent homology reveals the void coalescence during craze formation, and the results suggest that the yielding process is regarded as the percolation of nanovoids created by deformation.
我们应用持久同调分析研究了玻璃态聚合物银纹化过程中纳米空穴的行为。我们对无定形聚合物的单轴变形进行了粗粒化分子动力学模拟，并利用持久同调对结果进行了分析。持久同调揭示了银纹形成过程中的空穴合并，结果表明屈服过程可以看作是由变形产生的纳米空穴的渗流。
