Institute of Applied Mechanics;
College of Mechanical and Vehicle Engineering;
Taiyuan University of Technology;
Taiyuan 030024;
China;
Shanxi Key Laboratory of Material Strength and Structural Impact;
Taiyuan University of Technology;
Taiyuan 030024;
China;
Institute of Physics;
Chinese Academy of Sciences;
Beijing 100080;
China;
Dandelion scape; Coiled pattern; Cell hygroscopicity; Asymmetric deformation; Expansive material model;