[10a-N103-1~6] Frontiers of Mechanical Behavior in Heterogeneous and Random Materials: Cross-Material Integration and Emerging Insights

9:35 AM - 10:05 AM JST(12:35 AM - 1:05 AM UTC)

[10a-N103-2] Hidden hierarchical structures in amorphous solids correlating with mechanical response

〇Emi Minamitani¹ (1.SANKEN, Univ. Osaka)

Keywords:

amorphous,persistent homology

In this study, we combined molecular dynamics simulations with persistent homology analysis to elucidate the correlation between structure and mechanical properties in amorphous solids. We found that local structures with small Born terms are governed by short-range characteristics, whereas those with large nonaffine displacements exhibit hierarchical structures in which short-range disorder is embedded within medium-range order. Furthermore, these hierarchical structures are strongly correlated with low-energy localized vibrational excitations.