The local stress state of a running shear band in amorphous solids
作者： Jian Luo , Yunfeng Shi
DOI: 10.1557/JMR.2015.141
关键词: Forensic engineering 、 Hydrostatic equilibrium 、 Shear band 、 Stress (mechanics) 、 Shear stress 、 Amorphous metal 、 Amorphous solid 、 Materials science 、 Molecular dynamics 、 Composite material
摘要: In molecular dynamics simulations, the local stress state in shear band is examined six different model metallic glasses and one amorphous Si system (also has been perceived as a glass analog) under loading conditions. For all but FeP systems, running (RSB) exhibits liquid-like hydrostatic plus state. Our results suggest that liquid feature of RSB not due to temperature rise or plastic confinement disorder driven by flow, which can be offset strong directionality bonding, phase segregation, aging. The knowledge conveniently utilized experiments infer from global tensile for glasses.
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