TY JOUR TI Stability of the Reuleaux triangle under normal load KW critical force KW radius of curvature KW Reuleaux triangle KW elastic energy KW work of external force KW Euler’s equation JO Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences AU Tarasov, V.N. PY 2024 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"