ABSTRACT Through the simulations performed with the Surface Evolver, we explored the T1s and the eight-fold vertex related topological changes in the square cuboid frame by changing the axial ratio λ and the liquid fraction ϕ. A stability diagram is provided to illustrate the instabilities encountered in any quasi-static process. Metastable film configurations are always accompanied by pre-emptive instabilities, while the instabilities of stable film configurations are not triggered until the central quadrilateral film steadily vanishes.

中文翻译：

---

方长方体框架皂膜结构的不稳定性

摘要 通过使用 Surface Evolver 进行的模拟，我们通过改变轴比 λ 和液体分数 ϕ 探索了 T1s 和方形长方体框架中与八重顶点相关的拓扑变化。提供了稳定性图来说明在任何准静态过程中遇到的不稳定性。亚稳态薄膜构型总是伴随着先发制人的不稳定性，而稳定薄膜构型的不稳定性直到中心四边形薄膜稳定消失才被触发。