Finite strain expansion/contraction of a hollow sphere made of strain- and rate- hardening material

Rapid Release of Silicon by Ultrafast Joule Heating Generates Mechanically Stable Shell–Shell Si/C Anodes with Dominant Inward Deformation

“…Solid spheres, lacking a cavity, have limited internal adjustability, often resulting in localized stress concentration and rapid rupture. In contrast, hollow spheres demonstrate effective stress release during expansion, making them superior to solid spheres in this aspect. − This disparity is further magnified when scaling down materials to the nanoscale . Therefore, the intricate design of hollow nanostructures is always a central topic for optimizing stress release in deformable materials across wide applications.…”