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Measurable geometric indicators of local plasticity in glasses

Autor: Liu, Amelia C. Y., Pham, Huyen, Bera, Arabinda, Petersen, Timothy C., Sirk, Timothy W., Mudie, Stephen T., Tabor, Rico F., Nunez-Iglesias, Juan, Zaccone, Alessio, Baggioli, Matteo

The notion of defects in crystalline phases of matter has been extremely powerful for understanding crystal growth, deformation and melting. These discontinuities in the periodic order of crystals are mathematically described by the Burgers vector, d

Externí odkaz: http://arxiv.org/abs/2410.09391

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Experimental identification of topological defects in 2D colloidal glass

Autor: Vaibhav, Vinay, Bera, Arabinda, Liu, Amelia C. Y., Baggioli, Matteo, Keim, Peter, Zaccone, Alessio

Topological defects are singularities in the order parameter space that are mathematically described by topological invariants and cannot be removed by continuous transformations. These defects play a significant role in various fields, ranging from

Externí odkaz: http://arxiv.org/abs/2405.06494

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Clustering of negative topological charge precedes plastic failure in 3D glasses

Autor: Bera, Arabinda, Baggioli, Matteo, Petersen, Timothy C., Liu, Amelia C. Y., Zaccone, Alessio

Publikováno v: PNAS Nexus (2024)

The deformation mechanism in amorphous solids subjected to external shear remains poorly understood because of the absence of well-defined topological defects mediating the plastic deformation. The notion of soft spots has emerged as a useful tool to

Externí odkaz: http://arxiv.org/abs/2401.15359

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