Burgers rings as topological signatures of Eshelby-like plastic events in glasses
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866911158747791360 |
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| author | Bera, Arabinda Regev, Ido Zaccone, Alessio Baggioli, Matteo |
| author_facet | Bera, Arabinda Regev, Ido Zaccone, Alessio Baggioli, Matteo |
| contents | Eshelby-like quadrupolar structures serve as the fundamental microscopic units for characterizing plastic instabilities in amorphous solids and play a crucial role in explaining their mechanical failure, including the formation of shear bands. However, identifying Eshelby-like plastic events in glasses remains challenging due to their inherent structural and dynamical complexity. In this work, we show that Eshelby-like structures can be precisely identified and localized using a topological invariant known as the continuous Burgers vector. By combining analytical and simulation techniques, we reveal the emergence of a topological Burgers ring around Eshelby plastic events, enabling the precise identification of their center of mass and capturing their orientation as well. This proposed method offers a clear and unambiguous framework to locate and characterize the plastic rearrangements that govern plasticity in glasses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_23069 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Burgers rings as topological signatures of Eshelby-like plastic events in glasses Bera, Arabinda Regev, Ido Zaccone, Alessio Baggioli, Matteo Disordered Systems and Neural Networks Materials Science Soft Condensed Matter Statistical Mechanics Eshelby-like quadrupolar structures serve as the fundamental microscopic units for characterizing plastic instabilities in amorphous solids and play a crucial role in explaining their mechanical failure, including the formation of shear bands. However, identifying Eshelby-like plastic events in glasses remains challenging due to their inherent structural and dynamical complexity. In this work, we show that Eshelby-like structures can be precisely identified and localized using a topological invariant known as the continuous Burgers vector. By combining analytical and simulation techniques, we reveal the emergence of a topological Burgers ring around Eshelby plastic events, enabling the precise identification of their center of mass and capturing their orientation as well. This proposed method offers a clear and unambiguous framework to locate and characterize the plastic rearrangements that govern plasticity in glasses. |
| title | Burgers rings as topological signatures of Eshelby-like plastic events in glasses |
| topic | Disordered Systems and Neural Networks Materials Science Soft Condensed Matter Statistical Mechanics |
| url | https://arxiv.org/abs/2505.23069 |