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Nanoscale oscillatory fracture propagation in metallic glasses |
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| Authors: | Y Braiman T Egami |
| Institution: | a Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States b Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, United States c Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, United States d Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, United States |
| Abstract: | We describe the oscillatory crack propagation for small propagation velocities at the atomistic scale that was recently observed for brittle metallic glasses G. Wang, Y.T. Wang, Y.H. Liu, M.X. Pan, D.Q. Zhao, W.H. Wang, Appl. Lett. 89 (2006) 121909; G. Wang, D.Q. Zhao, H.Y. Bai, M.X. Pan, A.L. Xia, B.S. Han, X.K. Xi, Y. Wu, W.H. Wang, Phys. Rev. Lett. 98 (2007) 235501]. Based on a simple model of crack propagation Y. Braiman, T. Egami, Phys. Rev. E, 77 (2008) 065101(R)], we derived and analyzed expressions for the feature size, oscillation period, and maximum strain accumulated in the material. |
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