We report a brittle Mg-based bulk metallic glass which approaches the ideal brittle behavior. However, a dimple structure is observed at the fracture surface by high resolution scanning electron microscopy, indicating some type of "ductile" fracture mechanism in this very brittle glass. We also show, from the available data, a clear correlation between the fracture toughness and plastic process...

Buckling of soft matter is ubiquitous in nature and has attracted increasing interest recently. This paper studies the retractile behaviors of a spherical shell perforated by sophisticated apertures, attributed to the buckling-induced large deformation. The buckling patterns observed in experiments were reproduced in computational modeling by imposing velocity-controlled loads and eigenmode-aff...

We construct analytical initial data for a slowly moving and rotating black hole generic orientations of the linear momentum spin. solve Hamiltonian constraint approximately work out properties apparent horizon show dependence its shape on angle between spin momentum. In particular dimple, whose location depends mentioned angle, arises 2-sphere geometry horizon. exclusively in case conformally ...