Atomistic simulation of shear localization in Cu–Zr bulk metallic glass |
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| Affiliation: | 1. Center for Atomic and Molecular Technologies, Osaka University, Osaka 565-0871, Japan;2. Department of Mechanical Engineering, Osaka University, Osaka 565-0871, Japan;3. Handai Frontier Research Center, Osaka University, Osaka 565-0871, Japan;4. Department of Materials Science and Engineering, Ohio State University, Columbus, OH 43210, USA;5. Center for Computational Science and E-systems, Japan Atomic Energy Agency, Tokyo 110-0015, Japan |
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| Abstract: | Shear deformations of Cu57Zr43 bulk metallic glass (BMG) model systems are performed using molecular dynamics simulation. The results suggest that both the hydrostatic stress and the stress normal to the shear plane should affect the shear response (modified Mohr–Coulomb yield criterion). We see shear localization and shear band nucleation in both a small system of 2000 atoms, and large systems of 524,288 atoms, and analyze local atomic structure evolution. |
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